{"id":641,"date":"2011-03-08T23:52:45","date_gmt":"2011-03-08T22:52:45","guid":{"rendered":"http:\/\/dianajuncher.dk\/astrophoto\/?p=641"},"modified":"2011-10-15T22:18:49","modified_gmt":"2011-10-15T21:18:49","slug":"star-birds","status":"publish","type":"post","link":"http:\/\/dianajuncher.dk\/astrophoto\/2011\/03\/star-birds","title":{"rendered":"Star Birds"},"content":{"rendered":"<p>Tonight I had fun trying to reproduce\u00a0<a href=\"http:\/\/apod.nasa.gov\/apod\/ap110211.html\">this APOD<\/a>.<\/p>\n<p><a href=\"http:\/\/dianajuncher.dk\/astrophoto\/wp-content\/uploads\/2011\/03\/starbirds1.jpg\"><img loading=\"lazy\" class=\"alignleft size-medium wp-image-901\" title=\"Orion\" src=\"http:\/\/dianajuncher.dk\/astrophoto\/wp-content\/uploads\/2011\/03\/starbirds1-300x288.jpg\" alt=\"\" width=\"300\" height=\"288\" srcset=\"http:\/\/dianajuncher.dk\/astrophoto\/wp-content\/uploads\/2011\/03\/starbirds1-300x288.jpg 300w, http:\/\/dianajuncher.dk\/astrophoto\/wp-content\/uploads\/2011\/03\/starbirds1-600x576.jpg 600w, http:\/\/dianajuncher.dk\/astrophoto\/wp-content\/uploads\/2011\/03\/starbirds1.jpg 800w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a>For the first round of images I programed my remote timer to take a 10 second exposure every 30 seconds. That gave me more than enough time to adjust the focus and the\u00a0camera to do its noise reduction thing. I started with the focus dial turned all the way to right (as far away from focus as possible), and then moved it a little bit left between each exposure. When I reached the far left I repeated the process going from left to right. The result you can see to the left.<\/p>\n<p>I like it. It looks like strange star birds flying in Orion formation. ;) And check out the beautiful colors: most of the stars are blue giants, Betelgeuse is a red supergiant and then there is the purple Orion Nebula.<\/p>\n<p>The camera focuses at infinity a little while before the focus dial reaches the far left, so the stars looks like toffees rather than butterflies. The individual stars wobble a bit between the exposures, probably due to a combination of the strong wind and my unsteady dial-turning hand.<\/p>\n<p><a href=\"http:\/\/dianajuncher.dk\/astrophoto\/wp-content\/uploads\/2011\/03\/starbirds2.jpg\"><img loading=\"lazy\" class=\"alignleft size-medium wp-image-902\" title=\"Orion\" src=\"http:\/\/dianajuncher.dk\/astrophoto\/wp-content\/uploads\/2011\/03\/starbirds2-300x213.jpg\" alt=\"\" width=\"300\" height=\"213\" srcset=\"http:\/\/dianajuncher.dk\/astrophoto\/wp-content\/uploads\/2011\/03\/starbirds2-300x213.jpg 300w, http:\/\/dianajuncher.dk\/astrophoto\/wp-content\/uploads\/2011\/03\/starbirds2-600x427.jpg 600w, http:\/\/dianajuncher.dk\/astrophoto\/wp-content\/uploads\/2011\/03\/starbirds2.jpg 800w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a>For the second round of images I\u00a0programed my remote timer to take a 10 second exposure every 20 seconds, and I tried to make smaller changes to the focus for each step.<\/p>\n<p>The wings are more smooth but the centre is still a bit bumpy. I did consider going out again for a third round but the cold got the better of me\u00a0(and I even wore two jackets), so that will have to wait for another clear night.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tonight I had fun trying to reproduce this APOD.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0},"categories":[16],"tags":[],"_links":{"self":[{"href":"http:\/\/dianajuncher.dk\/astrophoto\/wp-json\/wp\/v2\/posts\/641"}],"collection":[{"href":"http:\/\/dianajuncher.dk\/astrophoto\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/dianajuncher.dk\/astrophoto\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/dianajuncher.dk\/astrophoto\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/dianajuncher.dk\/astrophoto\/wp-json\/wp\/v2\/comments?post=641"}],"version-history":[{"count":13,"href":"http:\/\/dianajuncher.dk\/astrophoto\/wp-json\/wp\/v2\/posts\/641\/revisions"}],"predecessor-version":[{"id":903,"href":"http:\/\/dianajuncher.dk\/astrophoto\/wp-json\/wp\/v2\/posts\/641\/revisions\/903"}],"wp:attachment":[{"href":"http:\/\/dianajuncher.dk\/astrophoto\/wp-json\/wp\/v2\/media?parent=641"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/dianajuncher.dk\/astrophoto\/wp-json\/wp\/v2\/categories?post=641"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/dianajuncher.dk\/astrophoto\/wp-json\/wp\/v2\/tags?post=641"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}