{"id":1075,"date":"2023-06-26T14:24:57","date_gmt":"2023-06-26T12:24:57","guid":{"rendered":"https:\/\/kosmos-os.de\/?page_id=1075"},"modified":"2024-12-09T09:16:12","modified_gmt":"2024-12-09T08:16:12","slug":"berichte-und-beobachtungen","status":"publish","type":"page","link":"https:\/\/kosmos-os.de\/en\/berichte-und-beobachtungen\/","title":{"rendered":"Reports and observations"},"content":{"rendered":"<p>Again and again we are busy with interesting astronomical topics or spend our time with projects that require a more detailed description. Here you can see our reports in chronological sorting. Since we work on different astronomical topics you can also find them in a sorted order by topic.<\/p>\n\n\n\n<p><br><\/p>\n\n\n\n<p>If you prefer an order according to topic have a look <a href=\"https:\/\/kosmos-os.de\/en\/beitraege-thematisch\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>look here<\/strong><\/a>.<\/p>\n\n\n\n<p><br><\/p>\n\n\n\n<p>If you are looking  for a special expression you can search on all kosmos-os sites here:<\/p>\n\n\n<form role=\"search\" method=\"get\" action=\"https:\/\/kosmos-os.de\/en\/\" class=\"wp-block-search__button-outside wp-block-search__text-button wp-block-search\" data-trp-original-action=\"https:\/\/kosmos-os.de\/en\/\"    ><label class=\"wp-block-search__label screen-reader-text\" for=\"wp-block-search__input-1\" >Search<\/label><div class=\"wp-block-search__inside-wrapper\" ><input class=\"wp-block-search__input\" id=\"wp-block-search__input-1\" placeholder=\"\" value=\"\" type=\"search\" name=\"s\" required \/><button aria-label=\"Expression\" class=\"wp-block-search__button wp-element-button\" type=\"submit\" >Expression<\/button><\/div><input type=\"hidden\" name=\"trp-form-language\" value=\"en\"\/><\/form>\n\n\n<p><br><\/p>\n\n\n<ul class=\"wp-block-latest-posts__list has-dates wp-block-latest-posts\"><li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/expedition-ins-kometenreich\/\" aria-label=\"Expedition into the Comet Kingdom\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2026\/04\/image-1-150x150.png\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/expedition-ins-kometenreich\/\">Expedition into the Comet Kingdom<\/a><time datetime=\"2026-04-11T12:20:39+02:00\" class=\"wp-block-latest-posts__post-date\">11.04.2026<\/time><div class=\"wp-block-latest-posts__post-excerpt\">Um 03:15 Uhr wird die Stille der Nacht durch ein Ger\u00e4usch zerrissen\u2026 der Wecker klingelt.\nDie Wettervorhersage war nicht wirklich gut, aber: Wer nicht wagt, der nicht gewinnt!\nNur im Osten, etwa zwei Handbreit \u00fcber dem Horizont, ist ein Streifen klarer Himmel zu erkennen. Also in die Klamotten, Ausr\u00fcstung ins Auto, und los geht\u2019s. <\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/sternstunden-am-28-3-2026-nach-dem-regen-kam-die-klare-nacht\/\" aria-label=\"Sternstunden am 28.03.2026 &#8211; Nach dem Regen kam die klare Nacht\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2026\/03\/Olaf-28.3.2026-Der-Mond-mit-goldenem-Henkel-mit-dem-Seestar-S50-fotografiert-150x150.jpeg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" srcset=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2026\/03\/Olaf-28.3.2026-Der-Mond-mit-goldenem-Henkel-mit-dem-Seestar-S50-fotografiert-150x150.jpeg 150w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2026\/03\/Olaf-28.3.2026-Der-Mond-mit-goldenem-Henkel-mit-dem-Seestar-S50-fotografiert-300x300.jpeg 300w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2026\/03\/Olaf-28.3.2026-Der-Mond-mit-goldenem-Henkel-mit-dem-Seestar-S50-fotografiert-1024x1024.jpeg 1024w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2026\/03\/Olaf-28.3.2026-Der-Mond-mit-goldenem-Henkel-mit-dem-Seestar-S50-fotografiert-768x768.jpeg 768w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2026\/03\/Olaf-28.3.2026-Der-Mond-mit-goldenem-Henkel-mit-dem-Seestar-S50-fotografiert-12x12.jpeg 12w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2026\/03\/Olaf-28.3.2026-Der-Mond-mit-goldenem-Henkel-mit-dem-Seestar-S50-fotografiert.jpeg 1080w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/sternstunden-am-28-3-2026-nach-dem-regen-kam-die-klare-nacht\/\">Sternstunden on March 28, 2026 \u2013 After the rain came the clear night<\/a><time datetime=\"2026-03-30T10:49:26+02:00\" class=\"wp-block-latest-posts__post-date\">30.03.2026<\/time><div class=\"wp-block-latest-posts__post-excerpt\">Unfortunately, we had to cancel the \"Sternstunden\" event on Friday, March 27, 2025, at short notice due to bad weather. We already had 28 registrations for that date! As an alternative, we suggested the following evening at 7 p.m., hoping that many of those interested could make it.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/leuchtende-nachtwolken-nlc\/\" aria-label=\"Noctilucent clouds (NLC)\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2026\/03\/grafik-5-150x150.png\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/leuchtende-nachtwolken-nlc\/\">Noctilucent clouds (NLC)<\/a><time datetime=\"2026-03-22T16:07:08+01:00\" class=\"wp-block-latest-posts__post-date\">22.03.2026<\/time><div class=\"wp-block-latest-posts__post-excerpt\">While the sun, moon, planets and stars had been the subject of research for several thousand years, the atmosphere was the place where all the \u201cterrifyingly wondrous signs\u201d appeared that could be important for human existence and were therefore beyond question for research.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/astronomie-mit-75-warum-sich-ein-75-jaehriger-ein-smartteleskop-kauft\/\" aria-label=\"Astronomie mit 75 &#8211; warum sich ein 75-J\u00e4hriger ein Smartteleskop kauft&#8230;\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2026\/03\/image-3-150x150.png\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/astronomie-mit-75-warum-sich-ein-75-jaehriger-ein-smartteleskop-kauft\/\">Astronomie mit 75 &#8211; warum sich ein 75-J\u00e4hriger ein Smartteleskop kauft&#8230;<\/a><time datetime=\"2026-03-17T17:41:19+01:00\" class=\"wp-block-latest-posts__post-date\">17.03.2026<\/time><div class=\"wp-block-latest-posts__post-excerpt\">A personal account in which Bernd Neeb explains why he decided to buy a smart telescope to pursue his astronomical interests \u2013 a good idea even at 75!<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/sternstunden-am-25-2-2026-ein-fruehlingsabend-im-winter\/\" aria-label=\"Sternstunden am 25.2.2026 &#8211; Ein Fr\u00fchlingsabend im Winter\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2026\/03\/IMG_2854-dunkel-1200x800-1-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/sternstunden-am-25-2-2026-ein-fruehlingsabend-im-winter\/\">Sternstunden on February 25, 2026 \u2013 A spring evening in winter<\/a><time datetime=\"2026-03-06T16:18:11+01:00\" class=\"wp-block-latest-posts__post-date\">06.03.2026<\/time><div class=\"wp-block-latest-posts__post-excerpt\">Even though it doesn't look like it in the photos, it was already an almost mild spring evening \u2013 and this was at the end of February! As early as the afternoon, we were saying on our WhatsApp group, \"The sky already looks great \u2013 hopefully it stays that way tonight!\" <\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/polarlicht-ueber-osnabrueck\/\" aria-label=\"Northern Lights above Osnabr\u00fcck\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2026\/01\/image-3-150x150.jpeg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/polarlicht-ueber-osnabrueck\/\">Northern Lights above Osnabr\u00fcck<\/a><time datetime=\"2026-01-26T20:14:21+01:00\" class=\"wp-block-latest-posts__post-date\">26.01.2026<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The sun was still very active in January 2026 and hurled a huge cloud of charged particles (solar wind) towards Earth on January 18th at 7:09 PM. These particles were traveling at an incredible speed of approximately 1700 km\/s and therefore hit Earth's atmosphere as early as January 19th at around 8:30 PM \u2013 after traveling approximately 150 million km in just 25 hours!\n\nMany of us braved the cold to go outside and look for the Northern Lights \u2013 and what a spectacle it was in the sky!<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/exkursion-zum-gravitationswellendetektor-geo600-bei-hannover-am-28-10-2025\/\" aria-label=\"Excursion to the GEO600 gravitational wave detector near Hanover on October 28, 2025\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/10\/Gerold-GEO600-28.10.2025_2-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/exkursion-zum-gravitationswellendetektor-geo600-bei-hannover-am-28-10-2025\/\">Excursion to the GEO600 gravitational wave detector near Hanover on October 28, 2025<\/a><time datetime=\"2025-10-30T17:26:40+01:00\" class=\"wp-block-latest-posts__post-date\">30.10.2025<\/time><div class=\"wp-block-latest-posts__post-excerpt\">What was supposed to be 1.5 hours turned into almost 2.5 hours. This wasn't time dilation as predicted by Einstein's theory of relativity. But in a broader sense, it did have something to do with Einstein, because we at kosmos-os visited the GEO600 gravitational wave detector near Sarstedt, close to Hanover, on November 28, 2025.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/die-kometen-lemmon-und-swan-im-jahr-2025\/\" aria-label=\"The Comets Lemmon and Swan in 2025\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/10\/Thomas-G.-Lemmon-20251118-klein-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/die-kometen-lemmon-und-swan-im-jahr-2025\/\">The Comets Lemmon and Swan in 2025<\/a><time datetime=\"2025-10-27T12:26:30+01:00\" class=\"wp-block-latest-posts__post-date\">27.10.2025<\/time><div class=\"wp-block-latest-posts__post-excerpt\">Comets are fleeting creatures. They usually don't announce their arrival. This is because they almost always arrive from far away in space, pay us a visit, and then disappear forever. The current visitors are comets C\/2025 A6 (Lemmon) and C\/2025 R2 (SWAN). In recent weeks, despite adverse weather conditions, some of us have been successful in our \"hunt\" for these two comets.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/die-venusbedeckung-durch-den-erdmond-am-19-09-2025\/\" aria-label=\"The occultation of Venus by the Moon on 19.09.2025\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/09\/image-14-150x150.png\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" srcset=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/09\/image-14-150x150.png 150w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/09\/image-14-13x12.png 13w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/die-venusbedeckung-durch-den-erdmond-am-19-09-2025\/\">The occultation of Venus by the Moon on 19.09.2025<\/a><time datetime=\"2025-09-28T11:46:10+02:00\" class=\"wp-block-latest-posts__post-date\">28.09.2025<\/time><div class=\"wp-block-latest-posts__post-excerpt\">All planets, including the Moon, move in orbits close to the ecliptic. Because the Moon's orbital plane is slightly inclined to that of the planets, occultations of individual planets by the Moon can occur from time to time. Such an occultation was predicted for September 19, 2025. Observing such an event is an astronomical highlight, as it offers a chance to witness celestial mechanics firsthand.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/die-mondfinsternis-am-07-09-2025\/\" aria-label=\"The lunar eclipse on 09\/07\/2025\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/09\/Mofi-1-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/die-mondfinsternis-am-07-09-2025\/\">The lunar eclipse on 09\/07\/2025<\/a><time datetime=\"2025-09-10T09:53:16+02:00\" class=\"wp-block-latest-posts__post-date\">10.09.2025<\/time><div class=\"wp-block-latest-posts__post-excerpt\">Lunar eclipses are not very common. To do this, the moon must dip into the shadow of the Earth, which is illuminated by the sun. This can only happen if the sun, earth and moon are sufficiently in line. The plane of the moon's orbit around the earth is inclined by about 5.2\u00b0 compared to the earth's orbit around the sun (ecliptic). Therefore, the full moon does not dip into the Earth's shadow every time it orbits. Only when the full moon is sufficiently close to one of the two intersections of the ecliptic and the moon's orbit (lunar node) does a lunar eclipse occur.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/sonnenastronomie-am-piesberg\/\" aria-label=\"Solar astronomy at Piesberg\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/09\/ICON-300x200-Bergfest-MIK-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/sonnenastronomie-am-piesberg\/\">Solar astronomy at Piesberg<\/a><time datetime=\"2025-09-09T07:48:03+02:00\" class=\"wp-block-latest-posts__post-date\">09.09.2025<\/time><div class=\"wp-block-latest-posts__post-excerpt\">\u00a0\"Sunshine, everything's good\" \u2013 that sums up Sunday, September 7, 2025, which we of \"kosmos-os\" spent at Piesberg. The Museum of Industrial Culture had invited the Osnabr\u00fcck residents to the \"Bergfest\" (mountain festival) and asked us to be there with an information booth. Of course, we agreed.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/reproduzierbarkeit-von-transitlichtkurven-zum-nachweis-von-exoplaneten\/\" aria-label=\"Reproducibility of transit light curves for the detection of exoplanets\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/07\/Alle-Icon-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/reproduzierbarkeit-von-transitlichtkurven-zum-nachweis-von-exoplaneten\/\">Reproducibility of transit light curves for the detection of exoplanets<\/a><time datetime=\"2025-07-20T12:30:57+02:00\" class=\"wp-block-latest-posts__post-date\">20.07.2025<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The transit light curves of five exoplanets are evaluated for their reproducibility. The parameters examined are the indirectly measured radius of the respective planet and the temporal center of the transit. After a detailed treatment of the individual exoplanets, a summary of the measurements shows that the respective planetary radius was measured reproducibly in 10 of 12 measurements. <\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/besuch-der-physikalisch-technischen-bundesanstalt-in-braunschweig-am-7-juli-2025\/\" aria-label=\"Visit to the Physikalisch-Technische Bundesanstalt in Braunschweig on 7 July 2025\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/07\/PTB-7.7.2025_1-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/besuch-der-physikalisch-technischen-bundesanstalt-in-braunschweig-am-7-juli-2025\/\">Visit to the Physikalisch-Technische Bundesanstalt in Braunschweig on 7 July 2025<\/a><time datetime=\"2025-07-11T07:39:42+02:00\" class=\"wp-block-latest-posts__post-date\">11.07.2025<\/time><div class=\"wp-block-latest-posts__post-excerpt\">Meter, kilogram, second, ampere, mole, kelvin, and not to forget the candela. These are the units of measurement of the International System of Units (SI \u2013 Syst\u00e8me international d'unit\u00e9s). Astronomers have encountered almost every one of them at some point. Considering this, it's easy to understand why, for us at kosmos-os, the Physikalisch-Technische Bundesanstalt (PTB) in Braunschweig, one of the internationally most important metrology institutions, is an attractive destination for one of our excursions.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/photometrie-auf-dem-itv\/\" aria-label=\"Photometry at ITV\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/AA8-Sternenfeld-klein-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" srcset=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/AA8-Sternenfeld-klein-150x150.jpg 150w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/AA8-Sternenfeld-klein-11x12.jpg 11w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/photometrie-auf-dem-itv\/\">Photometry at ITV<\/a><time datetime=\"2025-06-23T21:01:06+02:00\" class=\"wp-block-latest-posts__post-date\">23.06.2025<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The variable star T Coronae Borealis in the constellation Northern Crown is of interest at the moment, not only because it fluctuates regularly in brightness, but also because a nova event is imminent in the near future. At the ITV 2025 in Gedern, I was able to use one night to photometry this exciting star.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/faszination-weltraum\/\" aria-label=\"Fascination Space\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Thomas-WhatsApp-Bild-2025-06-01-um-22.34.27_0e489814-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/faszination-weltraum\/\">Fascination Space<\/a><time datetime=\"2025-06-03T08:30:48+02:00\" class=\"wp-block-latest-posts__post-date\">03.06.2025<\/time><div class=\"wp-block-latest-posts__post-excerpt\">Experiencing astronomy isn't just about gazing at the stars. As with many other pursuits, exchanging ideas with others who share a common interest is a significant motivating factor. The specially organized astronomy meetings are ideal for this. These bring together everyone who shares a passion for space. So, on Monday, May 26, 2025, the four of us\u2014Werner, Thomas, Gerold, and Burkhard\u2014set out from various locations in and around Osnabr\u00fcck toward Lake Gedern in the Vogelsberg Mountains.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/messung-der-transitlichtkurve-des-exoplaneten-tres-5b-am-11-12-mai-2025\/\" aria-label=\"Measurement of the transit light curve of the exoplanet TrES-5b on May 11\/12, 2025\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-150x150.png\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" srcset=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-150x150.png 150w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-300x300.png 300w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-12x12.png 12w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1.png 500w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/messung-der-transitlichtkurve-des-exoplaneten-tres-5b-am-11-12-mai-2025\/\">Measurement of the transit light curve of the exoplanet TrES-5b on May 11\/12, 2025<\/a><time datetime=\"2025-05-11T09:06:00+02:00\" class=\"wp-block-latest-posts__post-date\">11.05.2025<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The exoplanet and its parent star are located in the constellation Cygnus, on the border with Cepheus. The measurements were taken from May 11, 2025, 10:13 PM UTC to May 12, 2025, 1:57 AM UTC in Osnabr\u00fcck, Sonnenh\u00fcgel. The moon was 99% illuminated but 104\u00b0 away, so it could not shine into the telescope. It rose on May 11, 2025, at 6:22 PM UTC and set on May 12, 2025, at 3:00 AM UTC.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/ton-618-der-gigant\/\" aria-label=\"TON 618 &#8211; der Gigant\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/05\/LRGB02-paintnet-ausschn-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/ton-618-der-gigant\/\">TON 618 \u2013 the giant<\/a><time datetime=\"2025-05-09T13:33:43+02:00\" class=\"wp-block-latest-posts__post-date\">09.05.2025<\/time><div class=\"wp-block-latest-posts__post-excerpt\">On April 26, 2025, I took a photograph showing an area on the border between the constellation Canes Venatici and the constellation Coma Berenices. It's probably the most unspectacular photograph I've ever taken. However, among the recognizable stars and objects is my personal record holder.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/messung-der-transitlichtkurve-des-exoplaneten-kps-1b-am-30-april-1-mai-2025\/\" aria-label=\"Measurement of the transit light curve of the exoplanet KPS-1b on April 30\/May 1, 2025\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-1-150x150.png\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" srcset=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-1-150x150.png 150w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-1-300x300.png 300w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-1-12x12.png 12w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-1.png 500w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/messung-der-transitlichtkurve-des-exoplaneten-kps-1b-am-30-april-1-mai-2025\/\">Measurement of the transit light curve of the exoplanet KPS-1b on April 30\/May 1, 2025<\/a><time datetime=\"2025-04-30T09:06:00+02:00\" class=\"wp-block-latest-posts__post-date\">30.04.2025<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The exoplanet and its parent star are located in the constellation Ursa Major. The measurements were taken from April 30, 2025, at 9:11 p.m. UTC to May 1, 2025, at 12:49 a.m. UTC in Osnabr\u00fcck, Sonnenh\u00fcgel. The Moon was 14% illuminated and 61\u00b0 distant. It rose at 4:55 a.m. UTC on April 30, 2025, and set at 11:26 p.m. UTC, but its dim illumination was not yet disturbing.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/messung-der-transitlichtkurve-des-exoplaneten-toi-1811b-am-27-28-april-2025\/\" aria-label=\"Measurement of the transit light curve of the exoplanet TOI-1811b on April 27\/28, 2025\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt3-2-150x150.png\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/messung-der-transitlichtkurve-des-exoplaneten-toi-1811b-am-27-28-april-2025\/\">Measurement of the transit light curve of the exoplanet TOI-1811b on April 27\/28, 2025<\/a><time datetime=\"2025-04-27T09:06:00+02:00\" class=\"wp-block-latest-posts__post-date\">27.04.2025<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The exoplanet and its parent star are located in the constellation Coma Berenices. The measurements were taken from 23:00 UTC on April 27, 2025, to 2:54 UTC on April 28, 2025, in Osnabr\u00fcck, Sonnenh\u00fcgel. The Moon was illuminated at 0.2% and therefore not obstructive.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/exkursion-zur-olbers-gesellschaft-bremen-am-22-april-2025\/\" aria-label=\"Excursion to the Olbers Gesellschaft Bremen on April 22, 2025\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/04\/Bremen1-ger-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/exkursion-zur-olbers-gesellschaft-bremen-am-22-april-2025\/\">Excursion to the Olbers Gesellschaft Bremen on April 22, 2025<\/a><time datetime=\"2025-04-24T09:00:13+02:00\" class=\"wp-block-latest-posts__post-date\">24.04.2025<\/time><div class=\"wp-block-latest-posts__post-excerpt\">Originally, we had only planned to attend the lecture \"Measuring the Invisible Universe with the Help of Gravitational Wave Detectors\" at the Olbers Gesellschaft Bremen. Since we knew that the lecture would take place in the building of the University of Bremen, which also houses the Walter Stein Observatory, we inquired whether a short tour of the historic observatory would be possible. <\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/messung-der-transitlichtkurve-des-exoplaneten-toi-4137b-am-7-8-april-2025\/\" aria-label=\"Measurement of the transit light curve of the exoplanet TOI-4137b on April 7\/8, 2025\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-3-150x150.png\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" srcset=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-3-150x150.png 150w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-3-300x300.png 300w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-3-12x12.png 12w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-3.png 500w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/messung-der-transitlichtkurve-des-exoplaneten-toi-4137b-am-7-8-april-2025\/\">Measurement of the transit light curve of the exoplanet TOI-4137b on April 7\/8, 2025<\/a><time datetime=\"2025-04-07T09:07:00+02:00\" class=\"wp-block-latest-posts__post-date\">07.04.2025<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The measurements were taken from 7:26 p.m. UTC on April 7, 2025, to 12:51 a.m. UTC on April 8, 2025, in Osnabr\u00fcck, Sonnenh\u00fcgel. The moon was 78% illuminated and 66\u00b0 distant. It set at 3:24 a.m. UTC on April 8, 2025, and was therefore visible throughout the entire measurement period. It could therefore have shone into the telescope and potentially influenced the measurement accuracy.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/transitlichtkurve-des-exoplaneten-qatar-1b-am-6-7-april-2025\/\" aria-label=\"Transit light curve of the exoplanet Qatar-1b on June 6th\/7th April 2025\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-4-150x150.png\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" srcset=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-4-150x150.png 150w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-4-300x300.png 300w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-4-12x12.png 12w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-4.png 500w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/transitlichtkurve-des-exoplaneten-qatar-1b-am-6-7-april-2025\/\">Transit light curve of the exoplanet Qatar-1b on June 6th\/7th April 2025<\/a><time datetime=\"2025-04-06T15:43:00+02:00\" class=\"wp-block-latest-posts__post-date\">06.04.2025<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The measurements were taken from 10:07 p.m. UTC on April 6, 2025, to 2:24 a.m. UTC on April 7, 2025, in Osnabr\u00fcck, Sonnenh\u00fcgel. The moon was 70% illuminated and 93\u00b0 distant. It set at 3:03 a.m. UTC on April 7, 2025, and was therefore in the sky for the entire measurement period. However, because it was 93\u00b0 distant, it could not shine into the telescope.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/messung-der-transitlichtkurve-des-exoplaneten-qatar-10b-am-2-3-april-2025\/\" aria-label=\"Measurement of the transit light curve of the exoplanet Qatar-10b on 2\/3 April 2025\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-5-150x150.png\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" srcset=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-5-150x150.png 150w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-5-300x300.png 300w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-5-12x12.png 12w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-5.png 500w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/messung-der-transitlichtkurve-des-exoplaneten-qatar-10b-am-2-3-april-2025\/\">Measurement of the transit light curve of the exoplanet Qatar-10b on 2\/3 April 2025<\/a><time datetime=\"2025-04-02T15:43:00+02:00\" class=\"wp-block-latest-posts__post-date\">02.04.2025<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The measurements were taken from 21:55 UTC on April 2, 2025, to 3:27 UTC on April 3, 2025, in Osnabr\u00fcck, Sonnenh\u00fcgel. The moon was 27% illuminated and 64\u00b0 distant. It set on April 3, 2025, at 0:15 UTC.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/partielle-sonnenfinsternis-am-29-03-2025\/\" aria-label=\"Partial solar eclipse on March 29, 2025\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/03\/image-3-150x150.jpeg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" srcset=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/03\/image-3-150x150.jpeg 150w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/03\/image-3-298x300.jpeg 298w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/03\/image-3-12x12.jpeg 12w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/03\/image-3.jpeg 421w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/partielle-sonnenfinsternis-am-29-03-2025\/\">Partial solar eclipse on March 29, 2025<\/a><time datetime=\"2025-03-31T16:16:38+02:00\" class=\"wp-block-latest-posts__post-date\">31.03.2025<\/time><div class=\"wp-block-latest-posts__post-excerpt\">On Saturday, March 29, 2025, a partial solar eclipse  occurred, clearly visible from Osnabr\u00fcck. From 11:21 a.m. to 1:05 p.m., the Sun was covered by the Moon. At its peak at 12:13 p.m., 21.08% of the Sun was obscured. For this event, we organized a \u201cSternstunden Special\u201d.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/messung-der-transitlichtkurve-des-exoplaneten-qatar-8b-am-31-maerz-1-april-2025\/\" aria-label=\"Measurement of the transit light curve of the exoplanet Qatar-8b on March 31\/April 1, 2025\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-6-150x150.png\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" srcset=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-6-150x150.png 150w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-6-300x300.png 300w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-6-12x12.png 12w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-6.png 500w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/messung-der-transitlichtkurve-des-exoplaneten-qatar-8b-am-31-maerz-1-april-2025\/\">Measurement of the transit light curve of the exoplanet Qatar-8b on March 31\/April 1, 2025<\/a><time datetime=\"2025-03-31T14:20:00+02:00\" class=\"wp-block-latest-posts__post-date\">31.03.2025<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The measurements were taken from 9:26 p.m. UTC on March 31, 2025, to 3:06 a.m. UTC on April 1, 2025, in Osnabr\u00fcck, Sonnenh\u00fcgel. The moon was 10% illuminated and 78\u00b0 distant. It set on March 22, 2025, at 10:30 p.m. UTC. It was therefore not relevant for the measurement.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/messung-der-transitlichtkurve-des-exoplaneten-toi-1298b-am-27-28-maerz-2025\/\" aria-label=\"Measurement of the transit light curve of the exoplanet TOI-1298b on March 27\/28, 2025\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt-1-150x150.png\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/messung-der-transitlichtkurve-des-exoplaneten-toi-1298b-am-27-28-maerz-2025\/\">Measurement of the transit light curve of the exoplanet TOI-1298b on March 27\/28, 2025<\/a><time datetime=\"2025-03-27T18:11:00+01:00\" class=\"wp-block-latest-posts__post-date\">27.03.2025<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The measurements were taken from 22:32 UTC on March 27, 2025, to 4:27 UTC on March 28, 2025, in Osnabr\u00fcck, Sonnenh\u00fcgel. The moon was illuminated at 3% and 101\u00b0 away. It was therefore not relevant for the measurement.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/messung-der-transitlichtkurve-des-exoplaneten-kelt-23ab-am-21-22-maerz-2025\/\" aria-label=\"Measurement of the transit light curve of the exoplanet KELT-23Ab on March 21\/22, 2025\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-7-150x150.png\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" srcset=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-7-150x150.png 150w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-7-300x300.png 300w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-7-12x12.png 12w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-7.png 500w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/messung-der-transitlichtkurve-des-exoplaneten-kelt-23ab-am-21-22-maerz-2025\/\">Measurement of the transit light curve of the exoplanet KELT-23Ab on March 21\/22, 2025<\/a><time datetime=\"2025-03-21T13:56:00+01:00\" class=\"wp-block-latest-posts__post-date\">21.03.2025<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The measurements were taken from 10:21 PM UTC on March 21, 2025, to 2:37 AM UTC on March 22, 2025, in Osnabr\u00fcck, Sonnenh\u00fcgel. The moon was 55% illuminated and 98\u00b0 distant. It rose at 3:30 AM UTC on March 22, 2025. It was therefore not relevant for the measurement.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/messung-der-transitlichtkurve-des-exoplaneten-toi-1516b-am-20-21-maerz-2025\/\" aria-label=\"Measurement of the transit light curve of the exoplanet TOI-1516b on March 20\/21, 2025\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt3-8-150x150.png\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/messung-der-transitlichtkurve-des-exoplaneten-toi-1516b-am-20-21-maerz-2025\/\">Measurement of the transit light curve of the exoplanet TOI-1516b on March 20\/21, 2025<\/a><time datetime=\"2025-03-20T14:20:00+01:00\" class=\"wp-block-latest-posts__post-date\">20.03.2025<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The measurements were taken from 10:39 PM UTC on March 20, 2025, to 3:34 AM UTC on March 21, 2025, in Osnabr\u00fcck, Sonnenh\u00fcgel. The moon was 64% illuminated and 115\u00b0 distant. It rose at approximately 1:15 AM UTC on March 21, 2025, but only reached a maximum altitude of 9\u00b0 above the horizon. It was therefore of little relevance for the measurement.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/messung-der-transitlichtkurve-des-exoplaneten-toi-4137b-am-19-20-maerz-2025\/\" aria-label=\"Measurement of the transit light curve of the exoplanet TOI-4137b on March 19\/20, 2025\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-9-150x150.png\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" srcset=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-9-150x150.png 150w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-9-300x300.png 300w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-9-12x12.png 12w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-9.png 500w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/messung-der-transitlichtkurve-des-exoplaneten-toi-4137b-am-19-20-maerz-2025\/\">Measurement of the transit light curve of the exoplanet TOI-4137b on March 19\/20, 2025<\/a><time datetime=\"2025-03-19T14:26:00+01:00\" class=\"wp-block-latest-posts__post-date\">19.03.2025<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The measurements were taken from 7:19 PM UTC on March 19, 2025, to 12:39 AM UTC on March 20, 2025, in Osnabr\u00fcck, Sonnenh\u00fcgel. The moon was 74% illuminated and 133\u00b0 distant. It rose at approximately 12:15 AM UTC on March 20, 2025, and was therefore hardly relevant for the measurement.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/messung-der-transitlichtkurve-des-exoplaneten-toi-1259ab-am-18-maerz-2025\/\" aria-label=\"Measurement of the transit light curve of the exoplanet TOI-1259Ab on March 18, 2025\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-10-150x150.png\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" srcset=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-10-150x150.png 150w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-10-300x300.png 300w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-10-12x12.png 12w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-10.png 500w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/messung-der-transitlichtkurve-des-exoplaneten-toi-1259ab-am-18-maerz-2025\/\">Measurement of the transit light curve of the exoplanet TOI-1259Ab on March 18, 2025<\/a><time datetime=\"2025-03-18T14:51:00+01:00\" class=\"wp-block-latest-posts__post-date\">18.03.2025<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The measurements were taken from 12:14 a.m. UTC on March 18, 2025, to 4:32 a.m. UTC on March 18, 2025, in Osnabr\u00fcck, Sonnenh\u00fcgel. The Moon was 87% illuminated and 103\u00b0 distant. It set around 6:05 a.m. UTC. Sunrise was already around 5:30 a.m. UTC, which is why measurements could only be taken until about half an hour after the end of the transit.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/trugbilder-am-himmel\/\" aria-label=\"Mirage in the Sky\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/03\/Dreifach-Quasar-SDSS-J10292623-vom-2.3.2025-123-Aufn.-a120s-invert-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"Es wird die Beobachtung der drei Quasare Q0957+561, RXJ0921+4529 und SDSS J1029+2623beschrieben. Bei ihnen werden durch im Vordergrund liegende Galaxien bzw. Galaxienhaufen, die als Gravitationslinsen wirken, Mehrfachbilder erzeugt. Es wird gezeigt, dass auch an einem st\u00e4dtischen Beobachtungsort die Aufl\u00f6sung dieser Bilder gelingt.\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/trugbilder-am-himmel\/\">Mirage in the Sky<\/a><time datetime=\"2025-03-16T16:44:33+01:00\" class=\"wp-block-latest-posts__post-date\">16.03.2025<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The observation of the three quasars Q0957+561, RXJ0921+4529, and SDSS J1029+2623 is described. In these cases, multiple images are generated by galaxies or galaxy clusters in the foreground, which act as gravitational lenses. It is shown that these images can be resolved even at an urban observation site.\n<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/messung-der-transitlichtkurve-des-exoplaneten-hat-p-12b-am-7-8-maerz-2025\/\" aria-label=\"Measurement of the transit light curve of the exoplanet HAT-P-12b on March 7\/8, 2025\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-11-150x150.png\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" srcset=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-11-150x150.png 150w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-11-300x300.png 300w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-11-12x12.png 12w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-11.png 500w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/messung-der-transitlichtkurve-des-exoplaneten-hat-p-12b-am-7-8-maerz-2025\/\">Measurement of the transit light curve of the exoplanet HAT-P-12b on March 7\/8, 2025<\/a><time datetime=\"2025-03-07T14:40:00+01:00\" class=\"wp-block-latest-posts__post-date\">07.03.2025<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The measurements were taken from 9:42 PM UTC on March 7, 2025, to 2:00 AM UTC on March 8, 2025, in Osnabr\u00fcck, Sonnenh\u00fcgel. The moon was 64% illuminated and 87\u00b0 distant. It set around 4:25 AM UTC.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/messung-der-transitlichtkurve-des-exoplaneten-xo-6b-am-6-7-maerz-2025\/\" aria-label=\"Measurement of the transit light curve of the exoplanet XO-6b on March 6\/7, 2025\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/XO-6b_1-150x150.png\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" srcset=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/XO-6b_1-150x150.png 150w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/XO-6b_1-300x300.png 300w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/XO-6b_1-12x12.png 12w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/XO-6b_1.png 500w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/messung-der-transitlichtkurve-des-exoplaneten-xo-6b-am-6-7-maerz-2025\/\">Measurement of the transit light curve of the exoplanet XO-6b on March 6\/7, 2025<\/a><time datetime=\"2025-03-06T16:43:06+01:00\" class=\"wp-block-latest-posts__post-date\">06.03.2025<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The measurements were taken from 9:27 PM UTC on March 6, 2025, to 2:20 AM UTC on March 7, 2025, in Osnabr\u00fcck, Sonnenh\u00fcgel. The moon was 54% illuminated and 46\u00b0 distant. It set around 2:15 AM UTC.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/messung-der-transitlichtkurve-des-exoplaneten-qatar-10b-am-5-6-maerz-2025\/\" aria-label=\"Measurement of the transit light curve of the exoplanet Qatar-10b on March 5\/6, 2025\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-12-150x150.png\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" srcset=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-12-150x150.png 150w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-12-300x300.png 300w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-12-12x12.png 12w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt1-12.png 500w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/messung-der-transitlichtkurve-des-exoplaneten-qatar-10b-am-5-6-maerz-2025\/\">Measurement of the transit light curve of the exoplanet Qatar-10b on March 5\/6, 2025<\/a><time datetime=\"2025-03-05T16:27:56+01:00\" class=\"wp-block-latest-posts__post-date\">05.03.2025<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The measurements were taken from 11:28 PM UTC on March 5, 2025, to 4:11 AM UTC on March 6, 2025, in Osnabr\u00fcck, Sonnenh\u00fcgel. The moon was 43% illuminated and 80\u00b0 distant. It set around 1:00 AM UTC.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/messung-der-transitlichtkurve-des-exoplaneten-toi-2154b-am-4-5-maerz-2025\/\" aria-label=\"Measurement of the transit light curve of the exoplanet TOI-2154b on March 4\/5, 2025\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/06\/Unbenannt-150x150.png\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/messung-der-transitlichtkurve-des-exoplaneten-toi-2154b-am-4-5-maerz-2025\/\">Measurement of the transit light curve of the exoplanet TOI-2154b on March 4\/5, 2025<\/a><time datetime=\"2025-03-04T14:27:00+01:00\" class=\"wp-block-latest-posts__post-date\">04.03.2025<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The measurements were taken from 7:20 PM UTC on March 4, 2025, to 12:16 AM UTC on March 5, 2025, in Osnabr\u00fcck, Sonnenh\u00fcgel. The moon was 28% illuminated and 63\u00b0 distant. It set at 12:20 AM UTC. During the measurement, some cirrus clouds passed through.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/gross-schwarz-heiss-und-mit-kurzer-lebenserwartung\/\" aria-label=\"Big, black, hot and with a short life expectancy\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/02\/Unbenannt-150x150.png\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/gross-schwarz-heiss-und-mit-kurzer-lebenserwartung\/\">Big, black, hot and with a short life expectancy<\/a><time datetime=\"2025-02-14T12:09:18+01:00\" class=\"wp-block-latest-posts__post-date\">14.02.2025<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The measurement of the transit light curve of the exoplanet Wasp-12b is described. This exoplanet is special in many ways. The large number of existing transit light curves, including our own measurements, enables spectacular predictions about the lifespan of the exoplanet.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/die-welt-der-dunkelnebel\/\" aria-label=\"The World of Dark Nebulae \u00a0\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/01\/LDN1235-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/die-welt-der-dunkelnebel\/\">The World of Dark Nebulae \u00a0<\/a><time datetime=\"2025-01-29T08:27:38+01:00\" class=\"wp-block-latest-posts__post-date\">29.01.2025<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The vast majority of astrophotos show luminous objects such as galaxies, stars, luminous nebulae or supernova remnants. This is about dark nebulae, which appear dark with their dust and gas and are all the more difficult to spot, although they are all the more interesting as the origin of the stars. Beverly Lynds, who made an invaluable contribution in this field, is remembered.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/sternstunden-im-januar-2025-ein-abend-der-planeten\/\" aria-label=\"Sternstunden im Januar 2025 &#8211; ein Abend der Planeten\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/01\/image-150x150.png\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/sternstunden-im-januar-2025-ein-abend-der-planeten\/\">Sternstunden in January 2025 \u2013 a planets evening<\/a><time datetime=\"2025-01-20T14:18:43+01:00\" class=\"wp-block-latest-posts__post-date\">20.01.2025<\/time><div class=\"wp-block-latest-posts__post-excerpt\">On January 18, 2025, we at kosmos-os, together with the Museum of Industrial Culture, invited to the Sternstunden on the Vosslinke at the Piesberg  starting at 5:30 p.m.. About 30 visitors accepted the invitation and had the opportunity to look at the planets Venus, Saturn, Jupiter and Mars with us in the telescope.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/kugelsternhaufen-faszinierende-uralte-giganten\/\" aria-label=\"Globular clusters \u2013 fascinating and ancient giants\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/12\/M13-1h30min_50-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/kugelsternhaufen-faszinierende-uralte-giganten\/\">Globular clusters \u2013 fascinating and ancient giants<\/a><time datetime=\"2024-12-13T08:36:37+01:00\" class=\"wp-block-latest-posts__post-date\">13.12.2024<\/time><div class=\"wp-block-latest-posts__post-excerpt\">Globular clusters turn out to be true jewel boxes in the night sky when magnified appropriately in the telescope. Hundreds of thousands or even millions of stars standing together in a spherical structure in one spot \u2013 often up to over 30,000 light-years away from us. But what exactly are globular clusters and are they all the same?<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/ein-leuchtpunktsucher-am-fernglas\/\" aria-label=\"A red dot finder on binoculars\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/12\/Werner_LPS1-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/ein-leuchtpunktsucher-am-fernglas\/\">A red dot finder on binoculars<\/a><time datetime=\"2024-12-10T11:23:03+01:00\" class=\"wp-block-latest-posts__post-date\">10.12.2024<\/time><div class=\"wp-block-latest-posts__post-excerpt\">Binoculars with a red dot finder are a fine thing. With a little skill, something like this can quickly be built by yourself.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/messung-der-transitlichtkurve-des-exoplaneten-toi-2570-b\/\" aria-label=\"Measurement of the transit light curve of the exoplanet TOI-2570 b\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/12\/TOI-2570-Sternfeld-Stack-mit-compstars-1400x783-jpg-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/messung-der-transitlichtkurve-des-exoplaneten-toi-2570-b\/\">Measurement of the transit light curve of the exoplanet TOI-2570 b<\/a><time datetime=\"2024-12-05T10:00:56+01:00\" class=\"wp-block-latest-posts__post-date\">05.12.2024<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The measurement of the transit light curve of the exoplanet TOI-2570 b, which was only discovered in 2022, is described. The brightness of the parent star, which is located in a very dense field of stars, was determined in 148 images in relation to comparison stars. The result agrees very well with the data known so far.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/die-uv-quelle-in-den-bahamas-und-sternengeburt-im-golf-von-mexiko-der-nordamerikanebel-ngc-7000\/\" aria-label=\"Die UV-Quelle in den &#8222;Bahamas&#8220; und Sternengeburt im &#8222;Golf von Mexiko&#8220; &#8211; Der Nordamerikanebel NGC 7000\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/11\/2024-10-25_27-Nordamerikanebel-jpg-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/die-uv-quelle-in-den-bahamas-und-sternengeburt-im-golf-von-mexiko-der-nordamerikanebel-ngc-7000\/\">The UV source in the \u201cBahamas\u201d and star birth in the \u201cGulf of Mexico\u201d \u2013 The North American Nebula NGC 7000<\/a><time datetime=\"2024-11-19T21:28:57+01:00\" class=\"wp-block-latest-posts__post-date\">19.11.2024<\/time><div class=\"wp-block-latest-posts__post-excerpt\">On October 25th and 27th, 2024, the author photographed the North American nebula from an urban garden. Its appearance gives the nebula its name. The article is less about its appearance and more about some of the astrophysical properties of the nebula and the objects within it.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/besuch-in-meiner-sternwarte\/\" aria-label=\"Visit to my observatory\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/11\/GR_8580-Kopie-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/besuch-in-meiner-sternwarte\/\">Visit to my observatory<\/a><time datetime=\"2024-11-14T17:33:30+01:00\" class=\"wp-block-latest-posts__post-date\">14.11.2024<\/time><div class=\"wp-block-latest-posts__post-excerpt\">On Wednesday, October 16th, 2024, a volunteer from the Neue Osnabr\u00fccker Zeitung (NOZ) and a photographer were with me to report on my hobby of astronomy, the comet C\/2023 A3 (Tsuchinshan-ATLAS) and the \u201csupermoon\u201d. The article should appear in the online edition of NOZ.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/der-komet-c2023-a3-tsuchinshan-atlas\/\" aria-label=\"The Comet C\/2023 A3  Tsuchinshan-ATLAS\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/10\/Gestacktes-Bild-aus-50-jpg-astroart-layers-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/der-komet-c2023-a3-tsuchinshan-atlas\/\">The Comet C\/2023 A3  Tsuchinshan-ATLAS<\/a><time datetime=\"2024-10-21T19:25:38+02:00\" class=\"wp-block-latest-posts__post-date\">21.10.2024<\/time><div class=\"wp-block-latest-posts__post-excerpt\">Comets have always stirred people's minds and led to amazement, ecstasy or fear. We take a closer look!<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/aller-guten-dinge-sind-drei\/\" aria-label=\"All good things come in threes\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/10\/Fitten-WhatsApp-Bild-2024-10-10-um-22.51.12_9773a21a-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/aller-guten-dinge-sind-drei\/\">All good things come in threes<\/a><time datetime=\"2024-10-20T16:55:12+02:00\" class=\"wp-block-latest-posts__post-date\">20.10.2024<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The sun has reached its maximum in its eleven-year activity cycle. For the third time this year, northern lights could be observed from Central Europe. A short excursion into the personal experiences of some kosmos-os friends at the Northern Lights on October 10, 2024 is presented.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/farbenspiel-ueber-island\/\" aria-label=\"Play of colours over Iceland\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/10\/2024-10-06-Island-Gerold-Holtkamp-aus-Video-7252-7357-6D-5s-14mm-ISO3200-viel-Farbe-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/farbenspiel-ueber-island\/\">Play of colours over Iceland<\/a><time datetime=\"2024-10-16T13:02:44+02:00\" class=\"wp-block-latest-posts__post-date\">16.10.2024<\/time><div class=\"wp-block-latest-posts__post-excerpt\">A travelogue about the excursion to the Northern lights in Iceland in September\/October 2024<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/exkursion-zum-radioteleskop-effelsberg\/\" aria-label=\"Excursion to the Effelsberg radio telescope\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/09\/WhatsApp-Bild-2024-09-21-um-15.59.21_8d67758b-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/exkursion-zum-radioteleskop-effelsberg\/\">Excursion to the Effelsberg radio telescope<\/a><time datetime=\"2024-09-23T17:23:05+02:00\" class=\"wp-block-latest-posts__post-date\">23.09.2024<\/time><div class=\"wp-block-latest-posts__post-excerpt\">You have to drive very far from Osnabr\u00fcck to get to the end of the visible universe or - to be more precise - to get to where you can \"see\" almost to this end. So six astro friends from kosmos-os set off from Osnabr\u00fcck on Saturday, September 21st, 2024 at 7 a.m.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/sternstunden-mit-saturn-und-mond\/\" aria-label=\"Sternstunden with Saturn and Moon\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/09\/image-1-150x150.png\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/sternstunden-mit-saturn-und-mond\/\">Sternstunden with Saturn and Moon<\/a><time datetime=\"2024-09-16T17:22:51+02:00\" class=\"wp-block-latest-posts__post-date\">16.09.2024<\/time><div class=\"wp-block-latest-posts__post-excerpt\">On Sept. 14th, 2024 kosmos-os together with Museum Industriekultur invited to the Sternstunden on the Vosslinke on the Piesberg in Osnabr\u00fcck. The weather was merciful to us and allowed us to look into a cloudless starry sky. About 25 interested visitors had come to admire the stars, the moon and the planet Saturn with us through our telescopes.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/30-jahr-feier-des-museums-industrie-kultur-kosmos-os-war-dabei\/\" aria-label=\"30th anniversary of the Museum Industriekultur \u2013 kosmos-os was there\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/09\/IMG_20240901_160421098_HDR-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/30-jahr-feier-des-museums-industrie-kultur-kosmos-os-war-dabei\/\">30th anniversary of the Museum Industriekultur \u2013 kosmos-os was there<\/a><time datetime=\"2024-09-02T20:19:36+02:00\" class=\"wp-block-latest-posts__post-date\">02.09.2024<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The Museum of Industrial Culture Osnabr\u00fcck (MIK) had asked whether we at kosmos-os would take part in the planned birthday party on Sunday, September 1st, 2024. After all, there is a proven good cooperation with our Sternstunden on the Vosslinke. We were happy to comply with the request.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/tres-3b-hat-p-18b-toi-2154b-und-toi-1251-01\/\" aria-label=\"TrES-3b, HAT-P-18b, TOI-2154b and TOI-1251.01\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/08\/Exoclock-Lightcurve-TrES-3b_6863_2024-07-18_Gerold_1561_Lum.pdf-150x150.png\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" srcset=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/08\/Exoclock-Lightcurve-TrES-3b_6863_2024-07-18_Gerold_1561_Lum.pdf-150x150.png 150w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/08\/Exoclock-Lightcurve-TrES-3b_6863_2024-07-18_Gerold_1561_Lum.pdf-300x300.png 300w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/08\/Exoclock-Lightcurve-TrES-3b_6863_2024-07-18_Gerold_1561_Lum.pdf-768x768.png 768w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/08\/Exoclock-Lightcurve-TrES-3b_6863_2024-07-18_Gerold_1561_Lum.pdf-12x12.png 12w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/08\/Exoclock-Lightcurve-TrES-3b_6863_2024-07-18_Gerold_1561_Lum.pdf-500x500.png 500w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/08\/Exoclock-Lightcurve-TrES-3b_6863_2024-07-18_Gerold_1561_Lum.pdf-800x800.png 800w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/08\/Exoclock-Lightcurve-TrES-3b_6863_2024-07-18_Gerold_1561_Lum.pdf.png 840w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/tres-3b-hat-p-18b-toi-2154b-und-toi-1251-01\/\">TrES-3b, HAT-P-18b, TOI-2154b and TOI-1251.01<\/a><time datetime=\"2024-08-21T16:45:00+02:00\" class=\"wp-block-latest-posts__post-date\">21.08.2024<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The measurements of the transit light curves of the exoplanets TrES-3b, HAT-P-18b, TOI-2154b as confirmed and TOI-1251.01 as unconfirmed exoplanet are described. Each of them has peculiarities that make it worthwhile to take a closer look at them. <\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/zwei-auf-einen-streich-im-himmel-ueber-dem-osnabruecker-land\/\" aria-label=\"Zwei auf einen Streich &#8211; Polarlichter und Sternschnuppen am Himmel \u00fcber dem Osnabr\u00fccker Land\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/08\/Perseiden-in-Lechtingen_vereint-Thomas-Grunge-980x648-1-1-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/zwei-auf-einen-streich-im-himmel-ueber-dem-osnabruecker-land\/\">Two in one fell swoop \u2013 northern lights and shooting stars in the sky above Osnabr\u00fcck<\/a><time datetime=\"2024-08-15T14:30:15+02:00\" class=\"wp-block-latest-posts__post-date\">15.08.2024<\/time><div class=\"wp-block-latest-posts__post-excerpt\">Shooting stars in August? Everyone has heard of this before.\n\nNorthern lights over Osnabr\u00fcck? We already had that this year! \nBut shooting stars and auroras together in one night over the Osnabr\u00fcck region? That's not possible!\n\nYes, it is!\n<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/die-offene-sternwarte-im-offenen-garten\/\" aria-label=\"The Open Observatory in the Open Garden\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/08\/IMG_20240804_124626330_HDR-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/die-offene-sternwarte-im-offenen-garten\/\">The Open Observatory in the Open Garden<\/a><time datetime=\"2024-08-05T20:44:53+02:00\" class=\"wp-block-latest-posts__post-date\">05.08.2024<\/time><div class=\"wp-block-latest-posts__post-excerpt\">In the Osnabr\u00fcck region, many private gardens are opened to the general public every summer. Their owners have come together to form the \u201cOpen Garden Gate Osnabr\u00fcck and the surrounding area\u201d. Anyone interested can get to know a variety of garden ideas.\n\nThis was also the case on Sunday, August 4, 2024, in the garden on Moorlandstrasse in Osnabr\u00fcck. The special thing here: There is a garden observatory.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/die-perseiden\/\" aria-label=\"The Perseids\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/07\/Perseiden_NASA-150x150.webp\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/die-perseiden\/\">The Perseids<\/a><time datetime=\"2024-07-01T11:29:25+02:00\" class=\"wp-block-latest-posts__post-date\">01.07.2024<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The Perseids are probably the most well-known recurring meteor shower. It triggers the shooting stars that can be observed well in August. The name \"Perseids\" derives from the direction the shooting stars seem to come from, the so-called radiant in the constellation Perseus.. <\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/on-the-moon-again-2024\/\" aria-label=\"On The Moon Again 2024\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/06\/Mond-am-16.6.2024-Olaf-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/on-the-moon-again-2024\/\">On The Moon Again 2024<\/a><time datetime=\"2024-06-19T10:33:18+02:00\" class=\"wp-block-latest-posts__post-date\">19.06.2024<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The moon. Everybody knows it. Everyone has seen it in the sky. It has been sung about countless times in poems and songs. Its influence on the earth is great. No wonder, after all, it is our closest cosmic neighbor. So why not take a close look at the Moon, not only with the naked eye, but also with an optical device?<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/mission-europa-clipper\/\" aria-label=\"Mission EUROPA CLIPPER\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/06\/EuropaClipper_Poster_08_2020_002_2_-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/mission-europa-clipper\/\">Mission EUROPA CLIPPER<\/a><time datetime=\"2024-06-09T10:34:00+02:00\" class=\"wp-block-latest-posts__post-date\">09.06.2024<\/time><div class=\"wp-block-latest-posts__post-excerpt\">On Saturday, June 9th, 2024, kosmos-os provided information about a new spectacular NASA space mission to Jupiter's moon Europa in October 2024 as part of a lecture at the Innovations Center Osnabr\u00fcck (ICO). In front of ten interested listeners, Dr. Achim Tegeler reported on the current status of the development of the Europa Clipper Mission.\u00a0<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/polarlicht-ueber-europa\/\" aria-label=\"Northern lights above Europe\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/05\/Position-Image-980x578-1-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/polarlicht-ueber-europa\/\">Northern lights above Europe<\/a><time datetime=\"2024-05-19T09:30:41+02:00\" class=\"wp-block-latest-posts__post-date\">19.05.2024<\/time><div class=\"wp-block-latest-posts__post-excerpt\">It was a special night from May 10th to 11th, 2024. Northern lights could be seen all over Europe. We didn't miss the impressive spectacle. In the article, the seven observers from kosmos-os are linked via a map showing their locations. Everyone reports his recordings and some videos on his own page. A short text reflects his own special experience.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/polarlicht-ueber-icker\/\" aria-label=\"Aurora above Icker\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/05\/Werner-11.05-1.10-Uhr-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/polarlicht-ueber-icker\/\">Aurora above Icker<\/a><time datetime=\"2024-05-10T09:05:00+02:00\" class=\"wp-block-latest-posts__post-date\">10.05.2024<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The forecasts for the sighting of Northern Lights promised a lot. And quite unusual for these latitudes lately: the weather should play along.\n\nI wanted to observe together with our kosmos-os colleague Gerold Holtkamp. The observation site had not yet been determined. But here in Icker in the district of Osnabr\u00fcck it is dark, no light in sight. So we decided to stay here and observed in front of the house and later in the garden<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/polarlicht-ueber-dem-elsass\/\" aria-label=\"Aurora above Alsace, France\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/05\/DSC0625_2-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/polarlicht-ueber-dem-elsass\/\">Aurora above Alsace, France<\/a><time datetime=\"2024-05-10T09:02:00+02:00\" class=\"wp-block-latest-posts__post-date\">10.05.2024<\/time><div class=\"wp-block-latest-posts__post-excerpt\">On the evening of the tenth of May, messages from NOAA (National Oceanic and Atmospheric Administration) came practically every minute, reporting the ever-increasing Kp index. Time to take a closer look at the sky, although at 48\u00b0 North you can rarely see auroras. And yes, there was a reddish-violet, barely perceptible shimmer in the night sky visible to the naked eye. So the noble drink was put aside and the camera was set up.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/polarlicht-ueber-dissen\/\" aria-label=\"Northern lights obove Dissen\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/05\/image-20240511000954-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/polarlicht-ueber-dissen\/\">Northern lights obove Dissen<\/a><time datetime=\"2024-05-10T09:01:00+02:00\" class=\"wp-block-latest-posts__post-date\">10.05.2024<\/time><div class=\"wp-block-latest-posts__post-excerpt\">At around 9:00 p.m. on May 10th, 2024, I simply placed an Allsky camera in the garden and had it recorded overnight. The best of the approximately 800 photos are shown here. At the same time, I observed the Northern Lights with my naked eyes.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/polarlicht-ueber-offelten\/\" aria-label=\"Aurora above Offelten\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/05\/2024.05.10-50-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/polarlicht-ueber-offelten\/\">Aurora above Offelten<\/a><time datetime=\"2024-05-10T08:59:00+02:00\" class=\"wp-block-latest-posts__post-date\">10.05.2024<\/time><div class=\"wp-block-latest-posts__post-excerpt\">At first I was quite disappointed by all the auroras, because it was very bright in the north and you could only see a few red auroras without structures. In addition, there was a thin layer of altostratus clouds.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/polarlichter-ueber-buxton-im-peak-district-england\/\" aria-label=\"Aurora above Buxton, Peak District, UK\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/06\/DSC_5430-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/polarlichter-ueber-buxton-im-peak-district-england\/\">Aurora above Buxton, Peak District, UK<\/a><time datetime=\"2024-05-10T08:58:00+02:00\" class=\"wp-block-latest-posts__post-date\">10.05.2024<\/time><div class=\"wp-block-latest-posts__post-excerpt\">On the evening of May 10th, we were standing with the camper at the campsite near Buxton in the Peak District in England. Since it was reasonably clear I looked up at nightfall to do some astrophotography with the Seestar.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/polarlicht-ueber-achmer\/\" aria-label=\"Northern lights obove Achmer\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/05\/DSCF4796-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/polarlicht-ueber-achmer\/\">Northern lights obove Achmer<\/a><time datetime=\"2024-05-10T08:56:00+02:00\" class=\"wp-block-latest-posts__post-date\">10.05.2024<\/time><div class=\"wp-block-latest-posts__post-excerpt\">Since I have been dealing with the topic of astronomy, there have been promising forecasts for the northern lights over Germany from time to time. So far, however, I have never had any success with it in this country, neither visually nor photographically. Until now.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/polarlicht-ueber-dem-osnabruecker-land\/\" aria-label=\"Northern lights obove the Osnabr\u00fcck region\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/05\/IMG_7039-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/polarlicht-ueber-dem-osnabruecker-land\/\">Northern lights obove the Osnabr\u00fcck region<\/a><time datetime=\"2024-05-10T08:51:00+02:00\" class=\"wp-block-latest-posts__post-date\">10.05.2024<\/time><div class=\"wp-block-latest-posts__post-excerpt\">In recent years I have experienced a number of northern lights on my trips to the Arctic Circle*. However, when the first warning messages from NOAA (National Oceanic and Atmospheric Administration) arrived by email on May 9th, announcing a Kp value of 8 for May 11th and 12th, I knew that something special was coming. Northern lights over the Osnabr\u00fcck region. I had never experienced that before!<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/t-coronae-borealis-die-nova-in-spe\/\" aria-label=\"T Coronae Borealis &#8211; Die Nova in spe\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/05\/Screenshot-AAVSO-T-CrB-1.1.1945-1.1.1947-150x150.png\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/t-coronae-borealis-die-nova-in-spe\/\">T Coronae Borealis \u2013 The Nova in the future<\/a><time datetime=\"2024-05-03T20:49:25+02:00\" class=\"wp-block-latest-posts__post-date\">03.05.2024<\/time><div class=\"wp-block-latest-posts__post-excerpt\">A star in the constellation Northern Crown is described, for which a drastic increase in brightness is expected this year 2024. The historical events of this nova are discussed, but above all the current state of knowledge about this star, which lights up regularly about every 80 years. <\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/die-noerdliche-krone\/\" aria-label=\"Corona Borealis &#8211; Die N\u00f6rdliche Krone\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/05\/CrB_de-150x150.png\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/die-noerdliche-krone\/\">Corona Borealis - The Northern Crown<\/a><time datetime=\"2024-05-03T11:10:18+02:00\" class=\"wp-block-latest-posts__post-date\">03.05.2024<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The constellation Corona Borealis is easily found between the constellations Bootes and Hercules. It shows an open-to-the-top ring structure formed by seven relatively well-recognizable stars. We find very interesting stars here...<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/messung-der-transitlichtkurven-der-exoplaneten-wasp-84b-und-kps-1b-am-7-und-8-maerz-2024\/\" aria-label=\"Measurement of the transit light curves of the exoplanets WASP-84b and KPS-1b on March 7 and 8, 2024\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/04\/Beitragsbild-KPS-1b-150x150.png\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" srcset=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/04\/Beitragsbild-KPS-1b-150x150.png 150w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/04\/Beitragsbild-KPS-1b-300x300.png 300w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/04\/Beitragsbild-KPS-1b-12x12.png 12w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/04\/Beitragsbild-KPS-1b-500x502.png 500w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/04\/Beitragsbild-KPS-1b.png 505w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/messung-der-transitlichtkurven-der-exoplaneten-wasp-84b-und-kps-1b-am-7-und-8-maerz-2024\/\">Measurement of the transit light curves of the exoplanets WASP-84b and KPS-1b on March 7 and 8, 2024<\/a><time datetime=\"2024-04-24T15:16:33+02:00\" class=\"wp-block-latest-posts__post-date\">24.04.2024<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The measurement of the transit light curves of the exoplanets WASP-84b and KPS-1b is described. The radius of the exoplanets is determined from the degree of \u201cdarkening\u201d of the parent stars. The transit method makes this possible, although the two systems can only be observed as point sources of light.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/wissenschaft-zum-anfassen\/\" aria-label=\"Hands-on science\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/04\/kosmos-os-am_ZARM-150x150.png\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/wissenschaft-zum-anfassen\/\">Hands-on science<\/a><time datetime=\"2024-04-16T16:17:34+02:00\" class=\"wp-block-latest-posts__post-date\">16.04.2024<\/time><div class=\"wp-block-latest-posts__post-excerpt\">A travelogue about the excursion of kosmos-os to the ZARM  Center for Applied Space Technology and Microgravity and to the Universum Bremen on April 13, .2024<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/der-de-mairan-nebel-m-43\/\" aria-label=\"Der De Mairan Nebel &#8211; M 43\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/03\/M43-150x150.png\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" srcset=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/03\/M43-150x150.png 150w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/03\/M43-11x12.png 11w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/der-de-mairan-nebel-m-43\/\">De Mairan's Nebula - M 43<\/a><time datetime=\"2024-04-05T09:43:37+02:00\" class=\"wp-block-latest-posts__post-date\">05.04.2024<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The De Mairan Nebula, which is directly adjacent to the Great Orion Nebula, is often not mentioned at all when observing the entire region around the constellation Orion. But it may be the cause of the spectacularly glowing HII regions on the Sword of Orion.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/der-pferdekopfnebel-im-orion\/\" aria-label=\"Der Pferdekopfnebel im Orion &#8211; B33\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/03\/Alnitak-session_1_GraXpert-csc-sr-St-beschn-verkl-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/der-pferdekopfnebel-im-orion\/\">The Horsehead Nebula in Orion - B33<\/a><time datetime=\"2024-03-22T11:32:29+01:00\" class=\"wp-block-latest-posts__post-date\">22.03.2024<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The closest active star-forming region to Earth is in the constellation Orion in the so-called Horsehead Nebula. Over the past two decades, a great deal of research has been done to understand its structural structure and the mechanisms at work within it.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/der-stern-beteigeuze-ein-roter-ueberriese\/\" aria-label=\"Der Stern Beteigeuze &#8211; ein Roter \u00dcberriese\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/02\/Orion-Icon-jpg-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/der-stern-beteigeuze-ein-roter-ueberriese\/\">The star Betelgeuse  - a Red Supergiant<\/a><time datetime=\"2024-03-08T08:59:08+01:00\" class=\"wp-block-latest-posts__post-date\">08.03.2024<\/time><div class=\"wp-block-latest-posts__post-excerpt\">Betelgeuse, Orion's left shoulder star, is a Red Supergiant that has become the focus of science and, of course, amateur astronomy at the latest after its significant brightness dimming at the end of 2019. The purpose of this summary is to present the current state of the facts about Betelgeuse.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/der-orionnebel-m42\/\" aria-label=\"Der Orionnebel &#8211; M42\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/02\/2024-01-08_09-M42-APO80_600-QHY268-G60-Offs20-10Grad-477L-je159RGB-astrart-ddp-tif-photoshop-hlvg-Gerold-Holtkamp-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/der-orionnebel-m42\/\">The Orion Nebula \u2013 M42<\/a><time datetime=\"2024-02-23T16:15:00+01:00\" class=\"wp-block-latest-posts__post-date\">23.02.2024<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The Orion Nebula or M42 is probably one of the most striking and therefore well-known deep sky objects in the nighttime winter sky.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/der-orion-und-seine-umgebung\/\" aria-label=\"The Orion constellation and surrounding\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/03\/Wintersechseck2-150x150.png\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/der-orion-und-seine-umgebung\/\">The Orion constellation and surrounding<\/a><time datetime=\"2024-02-23T16:10:00+01:00\" class=\"wp-block-latest-posts__post-date\">23.02.2024<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The Winter Hexagon represents an asterism composed of six stars from six different constellations. It consists of the very bright stars Capella in the constellation Auriga, Aldebaran in Taurus, Rigel in Orion, Sirius in Canis Majoris, Procyon in Canis Minor and Pollux in Gemini \u2013 in the sky, these stars form a beautiful hexagon, in the middle of which Orion can be found.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/und-es-bewegt-sich-doch\/\" aria-label=\"Und es bewegt sich doch&#8230;\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/02\/Dob22-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/und-es-bewegt-sich-doch\/\">And yet it moves...<\/a><time datetime=\"2024-02-12T09:40:18+01:00\" class=\"wp-block-latest-posts__post-date\">12.02.2024<\/time><div class=\"wp-block-latest-posts__post-excerpt\">Anyone who has ever had to transport a 12\" Dobsonian Goto telescope including rocker box and various additional parts such as power supply, finder telescope etc. knows that you don't necessarily want to carry the weight many meters even with two people.  So, a trolley is needed...<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/besondere-ehrung-fuer-dr-gerold-holtkamp-durch-die-aavso\/\" aria-label=\"Special honour for Dr. Gerold Holtkamp by the AAVSO\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/02\/AAVSO_DSLR_Holtkamp-150x150.png\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/besondere-ehrung-fuer-dr-gerold-holtkamp-durch-die-aavso\/\">Special honour for Dr. Gerold Holtkamp by the AAVSO<\/a><time datetime=\"2024-02-07T16:23:14+01:00\" class=\"wp-block-latest-posts__post-date\">07.02.2024<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The American Association AAVSO has now honored Dr. Gerold Holtkamp for his achievements as an amateur astronomer in the field of observation and measurement of variable stars and exoplanets.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/messung-der-transitlichtkurve-des-exoplaneten-toi-3952-01-am-10-01-2024\/\" aria-label=\"Measurement of the transit light curve of the exoplanet TOI 3952.01 on January 10, 2024\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/01\/IMG_20240111_005533237_HDR-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/messung-der-transitlichtkurve-des-exoplaneten-toi-3952-01-am-10-01-2024\/\">Measurement of the transit light curve of the exoplanet TOI 3952.01 on January 10, 2024<\/a><time datetime=\"2024-01-24T19:39:07+01:00\" class=\"wp-block-latest-posts__post-date\">24.01.2024<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The measurement of the transit light curve of the exoplanet TOI 3952.01, 1929 light years away, is described. It is a recently discovered exoplanet. The own measured data are compared with the few available literature values.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/sternstunden-am-19-1-2024-auf-der-vosslinke-am-osnabruecker-piesberg\/\" aria-label=\"Sternstunden on January 19th, 2024 on the Vosslinke at Osnabr\u00fcck&#039;s Piesberg\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/01\/IMG_9792-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/sternstunden-am-19-1-2024-auf-der-vosslinke-am-osnabruecker-piesberg\/\">Sternstunden on January 19th, 2024 on the Vosslinke at Osnabr\u00fcck's Piesberg<\/a><time datetime=\"2024-01-22T10:52:59+01:00\" class=\"wp-block-latest-posts__post-date\">22.01.2024<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The Sternstunden of January 19, 2024 are described. 23 visitors gathered on the Vosslinke on Piesberg to look into space. Moon, Jupiter, Orion and Andromeda Nebula, there was a lot to see.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/kalte-fuesse-und-klamme-haende-bei-der-astrofotografie-das-war-gestern\/\" aria-label=\"Kalte F\u00fc\u00dfe und klamme H\u00e4nde bei der Astrofotografie &#8211; das war gestern\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/01\/WhatsApp-Bild-2023-09-23-um-15.44.08_ee93087b-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/kalte-fuesse-und-klamme-haende-bei-der-astrofotografie-das-war-gestern\/\">Cold feet and clammy hands during astrophotography \u2013 that was yesterday<\/a><time datetime=\"2024-01-02T09:10:34+01:00\" class=\"wp-block-latest-posts__post-date\">02.01.2024<\/time><div class=\"wp-block-latest-posts__post-excerpt\">There are many garden observatories used by amateur astronomers and almost as many different concepts that are followed in their construction and operation. That's why it's always worth visiting such an observatory.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/pan-tau-oder-der-ungetruebte-blick-ins-all\/\" aria-label=\"&quot;Pan Tau&quot; \u2013 or the unobstructed view of space\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/12\/P2-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/pan-tau-oder-der-ungetruebte-blick-ins-all\/\">\"Pan Tau\" \u2013 or the unobstructed view of space<\/a><time datetime=\"2023-12-09T16:06:48+01:00\" class=\"wp-block-latest-posts__post-date\">09.12.2023<\/time><div class=\"wp-block-latest-posts__post-excerpt\">Dew is always a problem in astronomical observations. Here is a description of how to build a secondary mirror heater for Newtonian telescopes so that the dew no longer has a chance.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/sternstunde-mit-wandelsternen\/\" aria-label=\"&quot;Sternstunde&quot; with Planets\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/11\/IMG_8294-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/sternstunde-mit-wandelsternen\/\">\"Sternstunde\" with Planets<\/a><time datetime=\"2023-11-17T22:24:00+01:00\" class=\"wp-block-latest-posts__post-date\">17.11.2023<\/time><div class=\"wp-block-latest-posts__post-excerpt\">A \"Sternstunde\" is described, which is regularly offered by kosmos-os.de as so-called sidewalk astronomy. Although Osnabr\u00fcck is heavily lightpolluted interesting observations of the sky were made.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/venusbedeckung-am-09-11-2023\/\" aria-label=\"Occultation of Venus by the Moon on November 09, 2023\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/11\/VenusvorMondbedeckung-2-150x150.png\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/venusbedeckung-am-09-11-2023\/\">Occultation of Venus by the Moon on November 09, 2023<\/a><time datetime=\"2023-11-09T12:35:53+01:00\" class=\"wp-block-latest-posts__post-date\">09.11.2023<\/time><div class=\"wp-block-latest-posts__post-excerpt\">Not being able to observe an interesting astronomical event due to bad weather is part of an astronomer's fate. But that doesn't mean you can't still take a closer look. That is exactly what this report does.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/am-polarkreis-tanzt-das-nordlicht\/\" aria-label=\"The northern light dances in the Arctic Circle\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/10\/2023-10-11-vor-Blenduos-Island-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/am-polarkreis-tanzt-das-nordlicht\/\">The northern light dances in the Arctic Circle<\/a><time datetime=\"2023-10-17T22:29:00+02:00\" class=\"wp-block-latest-posts__post-date\">17.10.2023<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The report describes what has to be taken into account for successful sightings of the northern lights. In addition, factors that cannot be influenced, such as the weather and the space weather, are also mentioned. Recordings and videos of the northern lights are shown. In addition, numerous sources are listed for more detailed information.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/transitkurve-des-exoplaneten-toi-1259-a-b-am-25-26-9-2023\/\" aria-label=\"Transit light curve of the exoplanet TOI-1259 A b on September 25th\/26th, 2023\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/10\/Ausleuchtung-Var-Comp-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/transitkurve-des-exoplaneten-toi-1259-a-b-am-25-26-9-2023\/\">Transit light curve of the exoplanet TOI-1259 A b on September 25th\/26th, 2023<\/a><time datetime=\"2023-10-06T13:29:00+02:00\" class=\"wp-block-latest-posts__post-date\">06.10.2023<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The transit of the exoplanet TOI-1259 A b in front of its parent star, which is a component of a binary star system, is shown. The light curve recorded agrees well with the measurements of other authors. A detailed error analysis provides information on how to further improve this sensitive measurement method.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/zu-gast-auf-dem-herzberger-teleskoptreffen-htt-2023\/\" aria-label=\"Guest at the Herzberg Telescope Meeting, HTT 2023\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/10\/HTT-Eingang-1-von-1-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/zu-gast-auf-dem-herzberger-teleskoptreffen-htt-2023\/\">Guest at the Herzberg Telescope Meeting, HTT 2023<\/a><time datetime=\"2023-10-01T13:48:27+02:00\" class=\"wp-block-latest-posts__post-date\">01.10.2023<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The weekend promised good astro weather and so I packed my pile of astro stuff and drove spontaneously from Osnabr\u00fcck to Je\u00dfnigk in southern Brandenburg. It was to be my first visit to the Herzberg Telescope Meeting (HTT).<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/bau-einer-taukappe\/\" aria-label=\"Construction of a dew cap\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/09\/IMG_20230906_194719350_HDR-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/bau-einer-taukappe\/\">Construction of a dew cap<\/a><time datetime=\"2023-09-08T17:21:52+02:00\" class=\"wp-block-latest-posts__post-date\">08.09.2023<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The construction of a dew cap for a Newton telescope with a 250 mm aperture is described. Simple and therefore inexpensive means are used, essentially an insulating mat and a Velcro strip. The work process is described step by step.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/what-westhavellaender-astro-treffen-2023\/\" aria-label=\"WHAT &#8211; Westhavell\u00e4nder Astro Treffen 2023\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/08\/IMG_20230816_172710738_HDR-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/what-westhavellaender-astro-treffen-2023\/\">WHAT \u2013The \"Westhavell\u00e4nder Astro Treffen\" 2023<\/a><time datetime=\"2023-08-31T14:23:50+02:00\" class=\"wp-block-latest-posts__post-date\">31.08.2023<\/time><div class=\"wp-block-latest-posts__post-excerpt\">Anyone who thinks astronomy takes place outside in the cold night does not know G\u00fclpe in the Westhavelland. Every year, the WHAT \u2013 Westhavell\u00e4nder Astro Treffen takes place there. G\u00fclpe is located in one of the darkest areas of Germany. <\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/der-cirrus-nebel-im-schwan\/\" aria-label=\"The Cirrus Nebula in Swan\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/08\/2023-08-22-Cirrusnebel-APO80_600-CLS-L125x60s-RGBje41x60s-gain60-offset20-temp-10-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/der-cirrus-nebel-im-schwan\/\">The Cirrus Nebula in Swan<\/a><time datetime=\"2023-08-27T10:22:25+02:00\" class=\"wp-block-latest-posts__post-date\">27.08.2023<\/time><div class=\"wp-block-latest-posts__post-excerpt\">An image of the Cirrus Nebula with a total exposure time of over four hours is presented. The location of the recording was in the urban area of \u200b\u200bOsnabr\u00fcck, which was badly affected by artificial lighting. Nevertheless, the fine structures of this object could be imaged.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/whirlpool-galaxie-m51\/\" aria-label=\"Whirlpool galaxy (M51)\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/08\/M51-20200427-e1696748055405-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/whirlpool-galaxie-m51\/\">Whirlpool galaxy (M51)<\/a><time datetime=\"2023-08-17T17:21:19+02:00\" class=\"wp-block-latest-posts__post-date\">17.08.2023<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The image shown is composed of several images from different projects: variable measurement, exoplanet measurement, etc. in the period from 2015 to 2020<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/sonnenbeobachtung-beim-offenen-gartentor\/\" aria-label=\"Sonnenbeobachtung beim &#8222;Offenen Gartentor&#8220;\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/07\/IMG_7390-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/sonnenbeobachtung-beim-offenen-gartentor\/\">Observation of the sun at the event \"Offenes Gartentor\"<\/a><time datetime=\"2023-07-05T14:56:20+02:00\" class=\"wp-block-latest-posts__post-date\">05.07.2023<\/time><div class=\"wp-block-latest-posts__post-excerpt\">On selected dates throughout the year, private gardens in Osnabr\u00fcck and the surrounding area open their gates to give visitors a glimpse into their private green paradises. Such an \"open garden gate\" is also a good opportunity to present the most important factor for greenery and bloom \u2013 our sun!<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/on-the-moon-again-2023\/\" aria-label=\"On The Moon Again 2023\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/06\/OTMA-e1686138490652-150x150.png\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/on-the-moon-again-2023\/\">On The Moon Again 2023<\/a><time datetime=\"2023-06-27T21:08:15+02:00\" class=\"wp-block-latest-posts__post-date\">27.06.2023<\/time><div class=\"wp-block-latest-posts__post-excerpt\">Since 2019, astronomers in over 60 countries around the world have been commemorating the first moon landing in 1969 every year. We have been involved from the very beginning and support this project. At our \"On The Moon Again\" events, we show the moon to all interested parties and share our fascination for astronomy.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/bau-einer-binomontierung\/\" aria-label=\"Building a parallelogram mount for astronomical  binoculars\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/06\/cropped-cropped-monti_kompl-e1686592694759-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" srcset=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/06\/cropped-cropped-monti_kompl-e1686592694759-150x150.jpg 150w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/06\/cropped-cropped-monti_kompl-e1686592694759-300x300.jpg 300w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/06\/cropped-cropped-monti_kompl-e1686592694759.jpg 358w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/bau-einer-binomontierung\/\">Building a parallelogram mount for astronomical  binoculars<\/a><time datetime=\"2023-06-26T14:30:47+02:00\" class=\"wp-block-latest-posts__post-date\">26.06.2023<\/time><div class=\"wp-block-latest-posts__post-excerpt\">Being able to see astronomical objects with both eyes is a dream of many astronomers. That works ideally with a parallelogram mount for astronomical binolculars - and that's exactly what is built here!<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/messung-der-transitkurve-des-exoplaneten-tres-3-b-am-27-5-2023\/\" aria-label=\"Measurement of the Transit Lightcurve of Exoplanet TrES-3 b\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/06\/ETD-Transitcurve-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" srcset=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/06\/ETD-Transitcurve-150x150.jpg 150w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/06\/ETD-Transitcurve-300x300.jpg 300w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/06\/ETD-Transitcurve-1024x1024.jpg 1024w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/06\/ETD-Transitcurve-768x768.jpg 768w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/06\/ETD-Transitcurve-500x500.jpg 500w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/06\/ETD-Transitcurve-800x800.jpg 800w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/06\/ETD-Transitcurve.jpg 1200w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/messung-der-transitkurve-des-exoplaneten-tres-3-b-am-27-5-2023\/\">Measurement of the Transit Lightcurve of Exoplanet TrES-3 b<\/a><time datetime=\"2023-05-27T11:32:00+02:00\" class=\"wp-block-latest-posts__post-date\">27.05.2023<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The transit light curve of the exoplanet TrES-3 b was recorded and measured on May 27th and 28th 2023. The method used and the specific observation conditions are explained. The results are presented and discussed based on an evaluation in the international Exoplanet Transit Database (ETD). The own result is a contribution in the context of so-called citizen science for further exploration of exoplanets.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/innerhalb-und-ausserhalb-unserer-milchstrasse\/\" aria-label=\"Inside and outside our Milky Way\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/07\/2023-02-28-M81_M82-60x60s-L-je-20x60s-RGB-APO8_600-QHY268M-Gain60-Offset20-15Grad-ausschn-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/innerhalb-und-ausserhalb-unserer-milchstrasse\/\">Inside and outside our Milky Way<\/a><time datetime=\"2023-03-11T21:52:00+01:00\" class=\"wp-block-latest-posts__post-date\">11.03.2023<\/time><div class=\"wp-block-latest-posts__post-excerpt\">Color images with the mono camera QHY268M are shown. For this purpose, Fab filters are also used. The particular challenge was that one object stood above the bright city center of Osnabr\u00fcck and the other object was very disturbed by the moon with 70% illuminated area.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/komet-c-2022-e3-ztf\/\" aria-label=\"Komet C\/2022 E3 (ZTF)\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2024\/01\/2023-02-13-Komet-C_2022_E3-APO80_600-QHY268M-L180x30s-RGBje60x30s-fitswork-astroart2-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/komet-c-2022-e3-ztf\/\">Komet C\/2022 E3 (ZTF)<\/a><time datetime=\"2023-02-13T07:22:00+01:00\" class=\"wp-block-latest-posts__post-date\">13.02.2023<\/time><div class=\"wp-block-latest-posts__post-excerpt\">A comet is a fleeting visitor. This also applies to comet C\/2022 E3 (ZTF). On December 31, 2023 it was in the northern sky over Osnabr\u00fcck and on February 13, 2023 it was already in the south. The following photos were taken from a garden in Osnabr\u00fcck.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/soeben-entdeckt-exoplanet-toi-1259-a-b\/\" aria-label=\"\u201eSoeben\u201c entdeckt &#8211; Exoplanet TOI-1259 A b\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/07\/Ausschnitt-TOI-1259-A-und-B-675x406-1-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/soeben-entdeckt-exoplanet-toi-1259-a-b\/\">\"Just\" discovered - Exoplanet TOI-1259 A b<\/a><time datetime=\"2022-12-22T18:19:00+01:00\" class=\"wp-block-latest-posts__post-date\">22.12.2022<\/time><div class=\"wp-block-latest-posts__post-excerpt\">The transit light curve of the exoplanet TOI-1259 A b, discovered just two years ago, was measured. The data determined agree well with literature values. It is a double star system, which is additionally interesting. The close position at the north celestial pole allows interesting further observations.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/unendliche-weiten-home\/\" aria-label=\"&#8222;Unendliche Weiten&#8220; @ Home\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/07\/Bild-4-150x150.png\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/unendliche-weiten-home\/\">\"boundless vastness\" @ Home<\/a><time datetime=\"2022-10-03T19:28:00+02:00\" class=\"wp-block-latest-posts__post-date\">03.10.2022<\/time><div class=\"wp-block-latest-posts__post-excerpt\">In the constellation Draco you can find exoplanets that are particularly bright. They can therefore be easily photometrically analyzed with small apertures. The measurement of the transit light curve of the exoplanet Qatar-10b is described. It was discovered in 2019 and confirmed as such.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/der-stern-hd189733-und-sein-planet-hd189733b\/\" aria-label=\"The star HD189733 and its planet HD189733b\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/06\/Hantel-Nebel-28.8.2022-Guelpe-120minL-30R-30G-30B-Gain60-Offset20-Temp-15-ausschn-m-Mark-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/der-stern-hd189733-und-sein-planet-hd189733b\/\">The star HD189733 and its planet HD189733b<\/a><time datetime=\"2022-09-25T17:45:00+02:00\" class=\"wp-block-latest-posts__post-date\">25.09.2022<\/time><div class=\"wp-block-latest-posts__post-excerpt\">Using the star HD189733 and its exoplanet 189733b, it is shown that even with a relatively small instrument from an urban light-polluted area, interesting meaningful measurements of stellar rotation and planetary transit in front of its parent star can be carried out. In addition, the synopsis of the results of many amateur astronomers worldwide enables further insights.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/aufnahmen-aus-dem-westhavelland\/\" aria-label=\"Impressions of the WHAT 2022\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/07\/M33-24.8.2022-90minL-30R-30G-30B-Gain60-Offset20-Temp-10-ausschn2-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/aufnahmen-aus-dem-westhavelland\/\">Impressions of the WHAT 2022<\/a><time datetime=\"2022-09-07T18:06:00+02:00\" class=\"wp-block-latest-posts__post-date\">07.09.2022<\/time><div class=\"wp-block-latest-posts__post-excerpt\">Over the Westhavelland Star Park you can find obne of the darkest skies in Germany. This reputation was confirmed again this year at the 11th Westhavell\u00e4nder Astrotreff (26th to 30th August 2022). At this meeting, astronomers from all over Germany come together to observe and exchange ideas together. Our own impressions at this meeting are presented here.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/der-weg-zur-garten-teleskopsaeule\/\" aria-label=\"The way to a telescope column in the garden\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/06\/cropped-IMG_20220810_164004567-scaled-2-e1686592792454-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" srcset=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/06\/cropped-IMG_20220810_164004567-scaled-2-e1686592792454-150x150.jpg 150w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/06\/cropped-IMG_20220810_164004567-scaled-2-e1686592792454-300x300.jpg 300w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/06\/cropped-IMG_20220810_164004567-scaled-2-e1686592792454.jpg 400w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/der-weg-zur-garten-teleskopsaeule\/\">The way to a telescope column in the garden<\/a><time datetime=\"2022-08-08T15:03:00+02:00\" class=\"wp-block-latest-posts__post-date\">08.08.2022<\/time><div class=\"wp-block-latest-posts__post-excerpt\">It's always nice when you can initiate something. This was also the case on July 30th, 2022, when my astronomical colleagues and I inaugurated my new telescope column together. In the best weather and 3c (coffee, cake, cold drinks) the \"ceremonial act\" took place. Before that, of course, lays the history of the column, a slightly longer story \u2026<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/objekte-des-suedlichen-sternenhimmels\/\" aria-label=\"Objects of the southern sky\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/07\/Rooisand-29.5.2022-IMG_3384-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/objekte-des-suedlichen-sternenhimmels\/\">Objects of the southern sky<\/a><time datetime=\"2022-06-18T18:43:00+02:00\" class=\"wp-block-latest-posts__post-date\">18.06.2022<\/time><div class=\"wp-block-latest-posts__post-excerpt\">In Namibia, far away from civilization and thus all artificial lights, there is the Astro-Farm Rooisand. Here, from May 26th to June 1st  2022 many photos of objects of the southern sky were taken. A selection is presented.<\/div><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image alignright\"><a href=\"https:\/\/kosmos-os.de\/en\/polarlicht-ueber-island-1\/\" aria-label=\"Aurora over Iceland\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/06\/Bild-11-27.3.2022-Skastroend-6d-14mm-f2.8-iso10000-6s-IMG_0158-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"max-width:200px;max-height:200px;\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/kosmos-os.de\/en\/polarlicht-ueber-island-1\/\">Aurora over Iceland<\/a><time datetime=\"2022-03-23T21:19:00+01:00\" class=\"wp-block-latest-posts__post-date\">23.03.2022<\/time><div class=\"wp-block-latest-posts__post-excerpt\">A trip to Iceland from March 23rd - 31st, 2022 is reported. The island is almost on the Arctic Circle and is therefore very suitable for observing the northern lights. However, many factors have to be favorable to be successful. The weather and therefore the cloud density are important factors. Of course, there is also the fact that enough solar wind must arrive on Earth to produce the luminous phenomena. <\/div><\/li>\n<\/ul>\n\n\n<p><br><\/p>","protected":false},"excerpt":{"rendered":"<p>Immer wieder sind wir mit interessanten astronomischen Themen besch\u00e4ftigt oder verbringen unsere Zeit mit Projekten, die einer genaueren Beschreibung bed\u00fcrfen. Hier sind alle Betr\u00e4ge in chronologischer Reihenfolge zu sehen. Da wir zu unterschiedlichen Themen arbeiten, k\u00f6nnen unsere Berichte auch nach diesen sortiert angezeigt werden. Wer unsere Beitr\u00e4ge lieber nach Themen sortiert sehen m\u00f6chte, der kann [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_eb_attr":"","footnotes":""},"class_list":["post-1075","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/kosmos-os.de\/en\/wp-json\/wp\/v2\/pages\/1075","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kosmos-os.de\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/kosmos-os.de\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/kosmos-os.de\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kosmos-os.de\/en\/wp-json\/wp\/v2\/comments?post=1075"}],"version-history":[{"count":11,"href":"https:\/\/kosmos-os.de\/en\/wp-json\/wp\/v2\/pages\/1075\/revisions"}],"predecessor-version":[{"id":7317,"href":"https:\/\/kosmos-os.de\/en\/wp-json\/wp\/v2\/pages\/1075\/revisions\/7317"}],"wp:attachment":[{"href":"https:\/\/kosmos-os.de\/en\/wp-json\/wp\/v2\/media?parent=1075"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}