Scooot Posted October 31, 2023 Share Posted October 31, 2023 I actually had some clear skies without any moonlight so managed to get a good couple of nights worth of subs on M45. This is just over 5 hours worth of 3 minute images at zero gain with my baby Tak and ASI2600MC-PRO. One of my better efforts  18 Link to comment Share on other sites More sharing options...
saac Posted October 31, 2023 Share Posted October 31, 2023 I really like that @Scooot; you've certainly caught some of the feinter gas cloud and to my eye your background processing is spot on. I like the way you have a depth to the blue hue in the centre, my attempt at the moment is showing the same intensity throughout and less surrounding cloud. I need to catch a lot more data  Jim Link to comment Share on other sites More sharing options...
Scooot Posted October 31, 2023 Author Share Posted October 31, 2023 4 minutes ago, saac said: I really like that @Scooot; you've certainly caught some of the feinter gas cloud and to my eye your background processing is spot on. I like the way you have a depth to the blue hue in the centre, my attempt at the moment is showing the same intensity throughout and less surrounding cloud. I need to catch a lot more data  Jim Thanks Jim. I spent a lot of effort trying to get a decent stack in the first place which made processing the background much easier than I usually find it. I think I’ve finally got to grips with local normalisation for which I manually stacked half a dozen decent images to use as a reference. I processed a starless image too which also helped a great deal with the background and gasses. 1 Link to comment Share on other sites More sharing options...
Barv Posted November 1, 2023 Share Posted November 1, 2023 That's lovely! Looks really natural to me. Perfect processing! 😀 1 Link to comment Share on other sites More sharing options...
Scooot Posted November 1, 2023 Author Share Posted November 1, 2023 25 minutes ago, Barv said: That's lovely! Looks really natural to me. Perfect processing! 😀 Thanks Harvey. Link to comment Share on other sites More sharing options...
Scooot Posted November 1, 2023 Author Share Posted November 1, 2023 (edited) Here's an annotated version. Edited November 1, 2023 by Scooot 1 Link to comment Share on other sites More sharing options...
Scooot Posted November 1, 2023 Author Share Posted November 1, 2023 (edited) and here's something a little different. A 3d plot. You can clearly see the bulk of the smaller stars with very pointed peaks illustrating they're correctly exposed. However, not that you'd notice from the main image, the larger stars are illustrated by domes with flattish tops showing they're over exposed and saturated. To expose them correctly I'd guess I'd only need an exposure of a few seconds, 10 to 15 maybe. Â Edited November 1, 2023 by Scooot 1 Link to comment Share on other sites More sharing options...
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