{"id":477,"date":"2019-04-15T20:12:50","date_gmt":"2019-04-15T20:12:50","guid":{"rendered":"http:\/\/www.cantabsoftware.co.uk\/astrodb\/?p=477"},"modified":"2019-04-15T20:13:16","modified_gmt":"2019-04-15T20:13:16","slug":"barnard-33-horsehead-nebula-and-ngc-2023","status":"publish","type":"post","link":"https:\/\/www.cantabsoftware.co.uk\/astrodb\/?p=477","title":{"rendered":"Barnard 33 &#8211; Horsehead Nebula and NGC 2023"},"content":{"rendered":"<p>The Horsehead nebula is about 1500 light years from Earth, the bright reflection nebula to the bottom left is NGC 2023 and Alnitak (left hand star of Orion&#8217;s belt) is causing the flares emanating from the left hand side of the image.<br \/>\nThe image was taken with an Orion Optics AG12 (1140mm focal length at F3.8) and QSI 683 camera and Maxim DL on 26 February 2019. Auto-guiding done with a 9&#215;50 skywatcher 162mm focal length and lodestar. Sub frames (Baader LRGB filter set) consist of 20 luminance frames (180s 1&#215;1 bin high gain -20C) and 12 sub frames each of RGB (90s 2&#215;2 bin low gain -20C). Processed in PixInsight and a final high pass filter in Photoshop to enhance local contrast.<\/p>\n<p><a href=\"http:\/\/www.cantabsoftware.co.uk\/astrodb\/wp-content\/uploads\/2019\/04\/10HorseHead_190415.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-480\" src=\"http:\/\/www.cantabsoftware.co.uk\/astrodb\/wp-content\/uploads\/2019\/04\/10HorseHead_190415.jpg\" alt=\"\" width=\"3326\" height=\"2504\" srcset=\"https:\/\/www.cantabsoftware.co.uk\/astrodb\/wp-content\/uploads\/2019\/04\/10HorseHead_190415.jpg 3326w, https:\/\/www.cantabsoftware.co.uk\/astrodb\/wp-content\/uploads\/2019\/04\/10HorseHead_190415-300x226.jpg 300w, https:\/\/www.cantabsoftware.co.uk\/astrodb\/wp-content\/uploads\/2019\/04\/10HorseHead_190415-768x578.jpg 768w, https:\/\/www.cantabsoftware.co.uk\/astrodb\/wp-content\/uploads\/2019\/04\/10HorseHead_190415-1024x771.jpg 1024w\" sizes=\"auto, (max-width: 3326px) 100vw, 3326px\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Horsehead nebula is about 1500 light years from Earth, the bright reflection nebula to the bottom left is NGC 2023 and Alnitak (left hand star of Orion&#8217;s belt) is causing the flares emanating from the left hand side of &hellip; <a href=\"https:\/\/www.cantabsoftware.co.uk\/astrodb\/?p=477\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[17],"class_list":["post-477","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-b33-horsehead"],"_links":{"self":[{"href":"https:\/\/www.cantabsoftware.co.uk\/astrodb\/index.php?rest_route=\/wp\/v2\/posts\/477","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.cantabsoftware.co.uk\/astrodb\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.cantabsoftware.co.uk\/astrodb\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.cantabsoftware.co.uk\/astrodb\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cantabsoftware.co.uk\/astrodb\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=477"}],"version-history":[{"count":3,"href":"https:\/\/www.cantabsoftware.co.uk\/astrodb\/index.php?rest_route=\/wp\/v2\/posts\/477\/revisions"}],"predecessor-version":[{"id":482,"href":"https:\/\/www.cantabsoftware.co.uk\/astrodb\/index.php?rest_route=\/wp\/v2\/posts\/477\/revisions\/482"}],"wp:attachment":[{"href":"https:\/\/www.cantabsoftware.co.uk\/astrodb\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=477"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.cantabsoftware.co.uk\/astrodb\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=477"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cantabsoftware.co.uk\/astrodb\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=477"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}