{"id":2921,"date":"2023-08-27T10:22:25","date_gmt":"2023-08-27T08:22:25","guid":{"rendered":"https:\/\/kosmos-os.de\/?p=2921"},"modified":"2024-04-05T13:33:31","modified_gmt":"2024-04-05T11:33:31","slug":"der-cirrus-nebel-im-schwan","status":"publish","type":"post","link":"https:\/\/kosmos-os.de\/en\/der-cirrus-nebel-im-schwan\/","title":{"rendered":"The Cirrus Nebula in Swan"},"content":{"rendered":"<p><\/p>\n\n\n\n<p>Dr. Gerold Holtkamp, 27.8.2023<\/p>\n\n\n\n<p><br><\/p>\n\n\n\n<p>On WHAT 2023 (Westhavell\u00e4nder Astrotreffen) we of kosmos-os were pretty unlucky with the weather. It was sufficiently clear just on two out of seven nights. One of these was the last night of August 20\/21, 2023. It could have been a good night of observation. But the autoguiding (fine tracking) could not be stably connected to the mount. The reason \u2026. unknown until today.<\/p>\n\n\n\n<p><br><\/p>\n\n\n\n<p>Of course I was \u201cambitious\u201d. The night of August 22\/23, 2023 should remain clear again, but in Osnabr\u00fcck. The observation setup was the same as on WHAT, and\u2026. everything worked fine all night. This resulted in a total exposure time of over four hours.<\/p>\n\n\n\n<p><br><\/p>\n\n\n\n<p>The Cirrus Nebula is an emission and reflection nebula in the constellation Cygnus. The captured area is around NGC 6960 with adjacent star 52 Cygni and NGC 6979. In this star-studded area, this multicolored structure is a very appealing object. The Cirrus Nebula is about 2400 light-years from Earth. These structures are remnants of a supernova that took place about 8000 years ago. However, the data in the literature vary greatly.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><br><\/p>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69e08d953f916&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69e08d953f916\" class=\"wp-block-image size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"671\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/08\/2023-08-22-Cirrusnebel-APO80_600-CLS-L125x60s-RGBje41x60s-gain60-offset20-temp-10-1024x671.jpg\" alt=\"\" class=\"wp-image-2924\" srcset=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/08\/2023-08-22-Cirrusnebel-APO80_600-CLS-L125x60s-RGBje41x60s-gain60-offset20-temp-10-1024x671.jpg 1024w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/08\/2023-08-22-Cirrusnebel-APO80_600-CLS-L125x60s-RGBje41x60s-gain60-offset20-temp-10-300x197.jpg 300w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/08\/2023-08-22-Cirrusnebel-APO80_600-CLS-L125x60s-RGBje41x60s-gain60-offset20-temp-10-768x503.jpg 768w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/08\/2023-08-22-Cirrusnebel-APO80_600-CLS-L125x60s-RGBje41x60s-gain60-offset20-temp-10-1536x1007.jpg 1536w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/08\/2023-08-22-Cirrusnebel-APO80_600-CLS-L125x60s-RGBje41x60s-gain60-offset20-temp-10-2048x1342.jpg 2048w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/08\/2023-08-22-Cirrusnebel-APO80_600-CLS-L125x60s-RGBje41x60s-gain60-offset20-temp-10-18x12.jpg 18w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/08\/2023-08-22-Cirrusnebel-APO80_600-CLS-L125x60s-RGBje41x60s-gain60-offset20-temp-10-500x328.jpg 500w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/08\/2023-08-22-Cirrusnebel-APO80_600-CLS-L125x60s-RGBje41x60s-gain60-offset20-temp-10-800x524.jpg 800w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/08\/2023-08-22-Cirrusnebel-APO80_600-CLS-L125x60s-RGBje41x60s-gain60-offset20-temp-10-1280x839.jpg 1280w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2023\/08\/2023-08-22-Cirrusnebel-APO80_600-CLS-L125x60s-RGBje41x60s-gain60-offset20-temp-10-1920x1258.jpg 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Enlarge\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewbox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><figcaption class=\"wp-element-caption\"><em>Technical data:<br>Date: 2023.08.22.\/23.<br>Location: Osnabr\u00fcck<br>Camera: APO80\/600<br>Gain: 60<br>Offset: 20<br>Chiptemperature: -10\u00b0 C<br>Filter: CLS und je LRGB (Antlia)<br>Exposure times: L 125\u00d760 s, RGB 41\u00d760 s each<\/em><\/figcaption><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p><br><\/p>\n\n\n\n<p>More information about the Cirrus Nebula:<\/p>\n\n\n\n<p><a href=\"https:\/\/de.wikipedia.org\/wiki\/Cirrusnebel\">https:\/\/de.wikipedia.org\/wiki\/Cirrusnebel<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/www.astronomie.de\/beobachtungspraxis\/deep-sky\/deep-sky-objekte\/der-cirrusnebel\">https:\/\/www.astronomie.de\/beobachtungspraxis\/deep-sky\/deep-sky-objekte\/der-cirrusnebel<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>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.<\/p>","protected":false},"author":2,"featured_media":2924,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_eb_attr":"","footnotes":""},"categories":[66],"tags":[140,138,127,130],"class_list":["post-2921","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-deep_sky","tag-apochromat","tag-astronomie-osnabrueck","tag-deep-sky","tag-milchstrasse"],"_links":{"self":[{"href":"https:\/\/kosmos-os.de\/en\/wp-json\/wp\/v2\/posts\/2921","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=2921"}],"version-history":[{"count":10,"href":"https:\/\/kosmos-os.de\/en\/wp-json\/wp\/v2\/posts\/2921\/revisions"}],"predecessor-version":[{"id":4418,"href":"https:\/\/kosmos-os.de\/en\/wp-json\/wp\/v2\/posts\/2921\/revisions\/4418"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/kosmos-os.de\/en\/wp-json\/wp\/v2\/media\/2924"}],"wp:attachment":[{"href":"https:\/\/kosmos-os.de\/en\/wp-json\/wp\/v2\/media?parent=2921"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kosmos-os.de\/en\/wp-json\/wp\/v2\/categories?post=2921"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kosmos-os.de\/en\/wp-json\/wp\/v2\/tags?post=2921"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}