{"id":907178,"date":"2026-09-27T08:34:09","date_gmt":"2026-09-27T08:34:09","guid":{"rendered":"https:\/\/www.newsbeep.com\/au\/907178\/"},"modified":"2026-09-27T08:34:09","modified_gmt":"2026-09-27T08:34:09","slug":"apod-2026-september-27-andromeda-before-and-after-photoshop","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/au\/907178\/","title":{"rendered":"APOD: 2026 September 27 \u2013 Andromeda Before and After Photoshop"},"content":{"rendered":"

\n\t\t\t\t\t\t\tExplanation: What does the Andromeda galaxy really look like? The featured before image<\/a> shows how our Milky Way Galaxy<\/a>‘s closest major galactic neighbor really appears in a long exposure through Earth<\/a>‘s busy skies and with a digital camera that introduces normal imperfections. The picture is a stack of 223 images, each a 300 second exposure, taken from a garden observatory in Por<\/a>t<\/a>ugal<\/a> during 2019. Obvious image deficiencies include bright parallel airplane trails<\/a>, long and continuous satellite trails<\/a>, short cosmic ray streaks<\/a>, and bad pixels<\/a>. In the after image, these imperfections were actually not removed with Photoshop<\/a> specifically, but rather greatly reduced with a series of computer software packages that included Astro Pixel Processor, DeepSkyStacker, and PixInsight. All of this work was done not to deceive you<\/a> with a digital fantasy<\/a> that has little to do with the real likeness of the Andromeda galaxy<\/a> (M31), but to minimize Earthly artifacts that have nothing to do with the distant galaxy and so better recreate what M31 really does look like<\/a>.<\/p>\n

APOD’s email for image submissions has changed. Please see: APOD Submissions<\/a>
APOD’s main NASA site is moving<\/a>: From apod.nasa.gov<\/a> to science.nasa.gov\/apod<\/a>
Tomorrow’s picture: cosmic latte\t\t\t\t\t\t<\/p>\n","protected":false},"excerpt":{"rendered":"Explanation: What does the Andromeda galaxy really look like? The featured before image shows how our Milky Way…\n","protected":false},"author":2,"featured_media":907179,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23],"tags":[407743,64,63,128,285],"class_list":["post-907178","post","type-post","status-publish","format-standard","has-post-thumbnail","category-space","tag-apod","tag-au","tag-australia","tag-science","tag-space"],"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/posts\/907178","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/comments?post=907178"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/posts\/907178\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/media\/907179"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/media?parent=907178"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/categories?post=907178"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/tags?post=907178"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}