{"id":2077,"date":"2020-10-18T18:56:27","date_gmt":"2020-10-18T22:56:27","guid":{"rendered":"http:\/\/matthannan.net\/blog\/?p=2077"},"modified":"2020-10-18T18:56:27","modified_gmt":"2020-10-18T22:56:27","slug":"andromeda-at-50mm-again","status":"publish","type":"post","link":"https:\/\/matthannan.net\/blog\/andromeda-at-50mm-again\/","title":{"rendered":"Andromeda at 50mm, again"},"content":{"rendered":"\n<p>Went out on the 14th and took a quick 470 pictures of a blank spot in the sky. Actually, they were 4 seconds a piece, so just over a 30 minute exposure. Stopped down to f\/2.8 and tried out reducing to ISO 640. There is some discussion that modern (and that includes my older Nikon D5300) are ISO invariant, so there is no longer a need to crank the ISO to 1600, or even 800. I had been noticing that my images were constantly full of background noise at these ISO. I have to admit, it seems to have worked. Even zoomed in on the way much larger image that I captured, there is very little background noise to deal with. <\/p>\n\n\n\n<figure class=\"wp-block-gallery columns-2 is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"455\" data-attachment-id=\"2078\" data-permalink=\"https:\/\/matthannan.net\/blog\/andromeda-at-50mm-again\/andro-sequator-crop-close\/\" data-orig-file=\"https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/10\/Andro-Sequator-crop-close.png?fit=867%2C617&amp;ssl=1\" data-orig-size=\"867,617\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Andro-Sequator-crop-close\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/10\/Andro-Sequator-crop-close.png?fit=300%2C213&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/10\/Andro-Sequator-crop-close.png?fit=640%2C455&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/10\/Andro-Sequator-crop-close.png?resize=640%2C455&#038;ssl=1\" alt=\"\" data-id=\"2078\" data-full-url=\"https:\/\/matthannan.net\/blog\/wp-content\/uploads\/2020\/10\/Andro-Sequator-crop-close.png\" data-link=\"https:\/\/matthannan.net\/blog\/?attachment_id=2078\" class=\"wp-image-2078\" srcset=\"https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/10\/Andro-Sequator-crop-close.png?w=867&amp;ssl=1 867w, https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/10\/Andro-Sequator-crop-close.png?resize=300%2C213&amp;ssl=1 300w, https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/10\/Andro-Sequator-crop-close.png?resize=768%2C547&amp;ssl=1 768w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"442\" data-attachment-id=\"2079\" data-permalink=\"https:\/\/matthannan.net\/blog\/andromeda-at-50mm-again\/andro-sequator-crop\/\" data-orig-file=\"https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/10\/Andro-Sequator-crop.png?fit=2048%2C1413&amp;ssl=1\" data-orig-size=\"2048,1413\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Andro-Sequator-crop\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/10\/Andro-Sequator-crop.png?fit=300%2C207&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/10\/Andro-Sequator-crop.png?fit=640%2C442&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/10\/Andro-Sequator-crop.png?resize=640%2C442&#038;ssl=1\" alt=\"\" data-id=\"2079\" data-full-url=\"https:\/\/matthannan.net\/blog\/wp-content\/uploads\/2020\/10\/Andro-Sequator-crop.png\" data-link=\"https:\/\/matthannan.net\/blog\/?attachment_id=2079\" class=\"wp-image-2079\" srcset=\"https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/10\/Andro-Sequator-crop.png?resize=1024%2C707&amp;ssl=1 1024w, https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/10\/Andro-Sequator-crop.png?resize=300%2C207&amp;ssl=1 300w, https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/10\/Andro-Sequator-crop.png?resize=768%2C530&amp;ssl=1 768w, https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/10\/Andro-Sequator-crop.png?resize=1536%2C1060&amp;ssl=1 1536w, https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/10\/Andro-Sequator-crop.png?w=2048&amp;ssl=1 2048w, https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/10\/Andro-Sequator-crop.png?w=1280&amp;ssl=1 1280w, https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/10\/Andro-Sequator-crop.png?w=1920&amp;ssl=1 1920w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/figure><\/li><\/ul><\/figure>\n\n\n\n<p>This will be my last Andromeda Galaxy (M31) picture for a while, I think. Honestly, I am burned out on post-processing this thing. Calin, however, now knows the Andromeda Galaxy on sight, so I guess that is something. <img loading=\"lazy\" decoding=\"async\" height=\"16\" width=\"16\" alt=\"\ud83d\ude09\" src=\"https:\/\/static.xx.fbcdn.net\/images\/emoji.php\/v9\/t57\/1\/16\/1f609.png\"> My next target will be the Triangulum Galaxy (M33), which is just below Andromeda. If I manage to find it and end up with several final images, I might eventually stitch Andromeda and the rest of this North East corner of the sky together for a big blow-out view of what we are missing out on because people need to have their backyards lit up like it is daytime.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Went out on the 14th and took a quick 470 pictures of a blank spot in the sky. Actually, they were 4 seconds a piece, so just over a 30 minute exposure. Stopped down to f\/2.8 and tried out reducing &hellip; <a href=\"https:\/\/matthannan.net\/blog\/andromeda-at-50mm-again\/\">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":{"advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[376,13],"tags":[536,512,540,94],"class_list":["post-2077","post","type-post","status-publish","format-standard","hentry","category-astronomy","category-photography","tag-50mm","tag-andromeda","tag-burn-out","tag-calin"],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p2NxlE-xv","jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"jetpack-related-posts":[{"id":2081,"url":"https:\/\/matthannan.net\/blog\/triangulum-galaxy-at-50mm\/","url_meta":{"origin":2077,"position":0},"title":"Triangulum Galaxy at 50mm","author":"matthannan","date":"18 October 2020","format":false,"excerpt":"M33, the Triangulum Galaxy, or the Pinwheel Galaxy, and its neighborhood at 50mm. If the sky stays clear, I am going to try again tonight at 100mm. I knew nothing about this galaxy yesterday. Now I know that it is the second brightest object that we can see with our\u2026","rel":"","context":"In &quot;Astronomy&quot;","block_context":{"text":"Astronomy","link":"https:\/\/matthannan.net\/blog\/category\/astronomy\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/10\/M33-study-scaled-down.png?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/10\/M33-study-scaled-down.png?resize=350%2C200 1x, https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/10\/M33-study-scaled-down.png?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/10\/M33-study-scaled-down.png?resize=700%2C400 2x, https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/10\/M33-study-scaled-down.png?resize=1050%2C600 3x, https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/10\/M33-study-scaled-down.png?resize=1400%2C800 4x"},"classes":[]},{"id":2114,"url":"https:\/\/matthannan.net\/blog\/finally-caught-m31-and-m33-together-plus-cassiopeia-with-m103\/","url_meta":{"origin":2077,"position":1},"title":"Finally caught M31 and M33 together. Plus Cassiopeia with M103","author":"matthannan","date":"15 November 2020","format":false,"excerpt":"I finally got a good shot of M31 and M33! So happy. 50mm, f\/2.8, ISO 640, 361 exposures at 5 seconds each (just over 30 minutes) I have a much larger version, should you be interested. In that one, you can see that I was starting to capture the arms\u2026","rel":"","context":"In &quot;Astronomy&quot;","block_context":{"text":"Astronomy","link":"https:\/\/matthannan.net\/blog\/category\/astronomy\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/11\/Mirach-RGB-session_1-mod-lpc-cbg-cbg-St-ro.png?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/11\/Mirach-RGB-session_1-mod-lpc-cbg-cbg-St-ro.png?resize=350%2C200 1x, https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/11\/Mirach-RGB-session_1-mod-lpc-cbg-cbg-St-ro.png?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/11\/Mirach-RGB-session_1-mod-lpc-cbg-cbg-St-ro.png?resize=700%2C400 2x"},"classes":[]},{"id":2033,"url":"https:\/\/matthannan.net\/blog\/testing-the-new-camera-and-a-new-location\/","url_meta":{"origin":2077,"position":2},"title":"Testing the &#8220;new&#8221; Camera and a new Location","author":"matthannan","date":"27 August 2020","format":false,"excerpt":"Tried out a new location last night. This was at a boat launch\/park on the east side of one of the local lakes. While I was packing up, a late night fisherman suggested a couple of super dark locations around the state. He'd know better than me! I went out\u2026","rel":"","context":"In &quot;Astronomy&quot;","block_context":{"text":"Astronomy","link":"https:\/\/matthannan.net\/blog\/category\/astronomy\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/08\/Bootes-35-small.png?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/08\/Bootes-35-small.png?resize=350%2C200 1x, https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/08\/Bootes-35-small.png?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/08\/Bootes-35-small.png?resize=700%2C400 2x, https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/08\/Bootes-35-small.png?resize=1050%2C600 3x"},"classes":[]},{"id":2070,"url":"https:\/\/matthannan.net\/blog\/andromeda-at-50mm\/","url_meta":{"origin":2077,"position":3},"title":"Andromeda at 50mm","author":"matthannan","date":"11 October 2020","format":false,"excerpt":"This is from a session that I did back on Sept 25, using the 50mm f\/1.8 prime lens. Been banging my head against it in Deep Sky Stacker, Siril, and Sequator for the stacking and pre-processing, and then finishing up with The GIMP for post-processing. I just was not happy\u2026","rel":"","context":"In &quot;Astronomy&quot;","block_context":{"text":"Astronomy","link":"https:\/\/matthannan.net\/blog\/category\/astronomy\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/10\/Andromeda-50-DSS.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/10\/Andromeda-50-DSS.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/10\/Andromeda-50-DSS.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/10\/Andromeda-50-DSS.png?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/10\/Andromeda-50-DSS.png?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/10\/Andromeda-50-DSS.png?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":2133,"url":"https:\/\/matthannan.net\/blog\/perseus-at-50mm\/","url_meta":{"origin":2077,"position":4},"title":"Perseus at 50mm","author":"matthannan","date":"27 November 2020","format":false,"excerpt":"After a Thanksgiving Day of clouds yesterday, I happened to glance at my Clear Skies app and saw that the skies would clear at 8:00PM, so I jumped into my new Carhartt insulated overalls and headed out. It was warm enough that I didn't need the overalls, but they were\u2026","rel":"","context":"In &quot;Astronomy&quot;","block_context":{"text":"Astronomy","link":"https:\/\/matthannan.net\/blog\/category\/astronomy\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/11\/Perseus-scaled-1.png?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/11\/Perseus-scaled-1.png?resize=350%2C200 1x, https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/11\/Perseus-scaled-1.png?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/11\/Perseus-scaled-1.png?resize=700%2C400 2x, https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/11\/Perseus-scaled-1.png?resize=1050%2C600 3x, https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/11\/Perseus-scaled-1.png?resize=1400%2C800 4x"},"classes":[]},{"id":2098,"url":"https:\/\/matthannan.net\/blog\/m31-and-m33-again\/","url_meta":{"origin":2077,"position":5},"title":"M31 and M33 again","author":"matthannan","date":"8 November 2020","format":false,"excerpt":"Revisited the sky last night after a period of inactivity due to rain, snow, clouds, and\/or cold. It was nice to be outside again. Tried to get M31 and M33 in the same shot. M31 & M33, Take 1 Because I was unable to see my two main targets, I\u2026","rel":"","context":"In &quot;Astronomy&quot;","block_context":{"text":"Astronomy","link":"https:\/\/matthannan.net\/blog\/category\/astronomy\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/11\/2for50-Seq-cleaned-scaled-1.png?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/11\/2for50-Seq-cleaned-scaled-1.png?resize=350%2C200 1x, https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/11\/2for50-Seq-cleaned-scaled-1.png?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/11\/2for50-Seq-cleaned-scaled-1.png?resize=700%2C400 2x, https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/11\/2for50-Seq-cleaned-scaled-1.png?resize=1050%2C600 3x, https:\/\/i0.wp.com\/matthannan.net\/blog\/wp-content\/uploads\/2020\/11\/2for50-Seq-cleaned-scaled-1.png?resize=1400%2C800 4x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/matthannan.net\/blog\/wp-json\/wp\/v2\/posts\/2077","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/matthannan.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/matthannan.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/matthannan.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/matthannan.net\/blog\/wp-json\/wp\/v2\/comments?post=2077"}],"version-history":[{"count":1,"href":"https:\/\/matthannan.net\/blog\/wp-json\/wp\/v2\/posts\/2077\/revisions"}],"predecessor-version":[{"id":2080,"href":"https:\/\/matthannan.net\/blog\/wp-json\/wp\/v2\/posts\/2077\/revisions\/2080"}],"wp:attachment":[{"href":"https:\/\/matthannan.net\/blog\/wp-json\/wp\/v2\/media?parent=2077"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/matthannan.net\/blog\/wp-json\/wp\/v2\/categories?post=2077"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/matthannan.net\/blog\/wp-json\/wp\/v2\/tags?post=2077"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}