{"id":6387,"date":"2025-04-24T09:00:13","date_gmt":"2025-04-24T07:00:13","guid":{"rendered":"https:\/\/kosmos-os.de\/?p=6387"},"modified":"2025-11-17T09:48:48","modified_gmt":"2025-11-17T08:48:48","slug":"exkursion-zur-olbers-gesellschaft-bremen-am-22-april-2025","status":"publish","type":"post","link":"https:\/\/kosmos-os.de\/en\/exkursion-zur-olbers-gesellschaft-bremen-am-22-april-2025\/","title":{"rendered":"Excursion to the Olbers Gesellschaft Bremen on April 22, 2025"},"content":{"rendered":"<p>\u2013 Observatory, planetarium and lecture \u2013<\/p>\n\n\n\n<p><br><\/p>\n\n\n\n<p>Englisch\n\nOriginally, we had only booked participation in the lecture \u201cMeasuring the invisible universe with the help of gravitational wave detectors\u201d by <a href=\"https:\/\/www.aei.mpg.de\/person\/23709\" target=\"_blank\" rel=\"noreferrer noopener\">Dr. Gudrun Wanner<\/a> at the <a href=\"https:\/\/olbers-gesellschaft.de\/index.php\" target=\"_blank\" rel=\"noreferrer noopener\">Olbers-Gesellschaft e. V.<\/a> in Bremen. It was scheduled to start at 7:30 p.m. Since we knew that the lecture would take place in the building of the Bremen University of Applied Sciences, which also houses the <a href=\"https:\/\/olbers-gesellschaft.de\/index.php\/sternwarte\" target=\"_blank\" rel=\"noreferrer noopener\">Walter-Stein-Sternwarte<\/a> we inquired whether a short tour of the historic observatory would be possible. We quickly received a positive response from the association's chairman, Dipl.-Ing. Holger Voigt. The observatory tour was scheduled to begin at 6 p.m.\u2014exclusively for us.<br><\/p>\n\n\n\n<p>So we set off early in the afternoon, excited about what awaited us. Mr. Voigt and a colleague then gave us a comprehensive insight into the observatory's technology and the diverse activities there in Bremen.<\/p>\n\n\n\n<p><br><\/p>\n\n\n\n<p>The Olbers Gesellschaft Bremen is a long-established astronomical association, founded in 1920 and named in honor of the famous Bremen physician and astronomer Heinrich Wilhelm Olbers. It has played and continues to play a significant role in promoting astronomy in Northern Germany, particularly through its celestial observations, lectures, and other educational offerings. The cooperation with the university is naturally advantageous in this regard.<\/p>\n\n\n\n<p><br><\/p>\n\n\n\n<p>On the way to the lecture hall, we passed the planetarium, where the director allowed us a quick look inside and at the technical equipment. Having the observatory and planetarium so close together is a huge advantage. While the city location is a disadvantage for observation due to light pollution, the proximity to Bremen's population is extremely beneficial.<\/p>\n\n\n\n<p><br><\/p>\n\n\n\n<p>The subsequent lecture was of exceptional quality. Firsthand \u2013 Dr. Wanner is instrumental in the development and construction of the space-based gravitational wave detector. <a href=\"https:\/\/de.wikipedia.org\/wiki\/Laser_Interferometer_Space_Antenna\" target=\"_blank\" rel=\"noreferrer noopener\">LISA<\/a> beteiligt \u2013 erhielten wir in dem mit \u00fcber 60 Personen gut gef\u00fcllten H\u00f6rsaal aktuelle Informationen zum Stand der Erforschung des \u201eunsichtbaren\u201c Universums, i. e. wei\u00dfe Zwerge, Neutronensterne und schwarze L\u00f6cher. 2035 sollen die drei LISA-Satelliten gestartet werden.<\/p>\n\n\n\n<p><br><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p>The time until then will likely remain exciting for the detector's developers. The same applies to us amateur astronomers, given the other detectors we were introduced to that are also currently in development. The deep exploration of the cosmos is in full swing! We began the return journey to Osnabr\u00fcck very satisfied, inspired by the diverse impressions we had in Bremen.<\/p>\n\n\n\n<p><br><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/04\/Bremen1-ger-1024x768.jpg\" alt=\"\" class=\"wp-image-6389\" srcset=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/04\/Bremen1-ger-1024x768.jpg 1024w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/04\/Bremen1-ger-300x225.jpg 300w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/04\/Bremen1-ger-768x576.jpg 768w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/04\/Bremen1-ger-1536x1152.jpg 1536w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/04\/Bremen1-ger-16x12.jpg 16w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/04\/Bremen1-ger.jpg 2000w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\"><em>At the Walter Stein Observatory: (from left to right) Thomas, Achim, Gerold, Thomas, Werner and our host<\/em><\/figcaption><\/figure>\n\n\n\n<p><br><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/04\/Bremen2-ger-768x1024.jpg\" alt=\"\" class=\"wp-image-6390\" srcset=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/04\/Bremen2-ger-768x1024.jpg 768w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/04\/Bremen2-ger-225x300.jpg 225w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/04\/Bremen2-ger-1152x1536.jpg 1152w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/04\/Bremen2-ger-9x12.jpg 9w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/04\/Bremen2-ger.jpg 1500w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><figcaption class=\"wp-element-caption\"><em>The two main instruments of the observatory<\/em><\/figcaption><\/figure>\n\n\n\n<p><br><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"576\" height=\"1024\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/04\/WhatsApp-Bild-2025-04-23-um-09.51.03_c4c4dea1-576x1024.jpg\" alt=\"\" class=\"wp-image-6391\" srcset=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/04\/WhatsApp-Bild-2025-04-23-um-09.51.03_c4c4dea1-576x1024.jpg 576w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/04\/WhatsApp-Bild-2025-04-23-um-09.51.03_c4c4dea1-169x300.jpg 169w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/04\/WhatsApp-Bild-2025-04-23-um-09.51.03_c4c4dea1-768x1365.jpg 768w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/04\/WhatsApp-Bild-2025-04-23-um-09.51.03_c4c4dea1-864x1536.jpg 864w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/04\/WhatsApp-Bild-2025-04-23-um-09.51.03_c4c4dea1-7x12.jpg 7w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2025\/04\/WhatsApp-Bild-2025-04-23-um-09.51.03_c4c4dea1.jpg 900w\" sizes=\"auto, (max-width: 576px) 100vw, 576px\" \/><figcaption class=\"wp-element-caption\"><em>Many smaller telescopes are also available for use.<\/em><\/figcaption><\/figure>","protected":false},"excerpt":{"rendered":"<p>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. <\/p>","protected":false},"author":2,"featured_media":6389,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_eb_attr":"","footnotes":""},"categories":[23],"tags":[112,168,115,335,193],"class_list":["post-6387","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-reisen","tag-astronomie","tag-astronomy","tag-event","tag-exkursion","tag-sternwarte"],"_links":{"self":[{"href":"https:\/\/kosmos-os.de\/en\/wp-json\/wp\/v2\/posts\/6387","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kosmos-os.de\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kosmos-os.de\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kosmos-os.de\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/kosmos-os.de\/en\/wp-json\/wp\/v2\/comments?post=6387"}],"version-history":[{"count":9,"href":"https:\/\/kosmos-os.de\/en\/wp-json\/wp\/v2\/posts\/6387\/revisions"}],"predecessor-version":[{"id":6403,"href":"https:\/\/kosmos-os.de\/en\/wp-json\/wp\/v2\/posts\/6387\/revisions\/6403"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/kosmos-os.de\/en\/wp-json\/wp\/v2\/media\/6389"}],"wp:attachment":[{"href":"https:\/\/kosmos-os.de\/en\/wp-json\/wp\/v2\/media?parent=6387"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kosmos-os.de\/en\/wp-json\/wp\/v2\/categories?post=6387"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kosmos-os.de\/en\/wp-json\/wp\/v2\/tags?post=6387"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}