M51 Galaxy

 Posted: Mar 4th, 2026
Technical Info
Telescope/Lens: Celestron C 11 XLT SC
Camera: ZWO ASI2600MC DUO
Mount: EQ6R-PRO
Software: Sirill, Pi, LR
Accessories: Starizona SCT LF Corrector 0.7x
Exposure:
110 x 500" ISO/Gain: 100 - Unfiltered
37 x 500" ISO/Gain: 100 - Optolong L-Para
 Ekaterinburg, Russia
 Feb 19th, 2026
20 h 25 m
278
Resolution: 5868x3789 px
Scale: 10688 KB
Updated
  21 Apr, 2026
  20 h 25 m
I reprocessed the galaxy—not a single star was harmed in the process.
Current photo
  4 Mar, 2026
  20 h 25 m
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Comments

Very few stars. Return them as they were.
4 Mar, 2026 Reply
Deemoon Replied to Oeswww
For a focal length of 2060, stars are quite sufficient.
5 Mar, 2026 Reply
Oeswww Replied to Deemoon
What does focal length have to do with it? There aren't enough stars in this photo. They're heavily suppressed.
5 Mar, 2026 Reply
Deemoon Replied to Oeswww
I think this isn't the place to explain it. This is my processing, and it is what it is. If you don't think there are enough stars, process your own photos however you like—oh right, you don't know how, I forgot.
5 Mar, 2026 Reply
Oeswww Replied to Deemoon
Are you being sarcastic? That doesn't suit you. I'm talking about star trailing, and you're bringing up the focal length to star count ratio. Oh well. Advice isn't welcome here today. Although you did listen about Orion, and it turned out much better. It would have been the same here...
5 Mar, 2026 Reply
Deemoon Replied to Oeswww
There is a golden mean between star quality and their quantity. Perhaps it has not been found; I do not claim to have it. Both the quantity and quality of stars genuinely depend on the focal length, as well as the area of interest.
5 Mar, 2026 Reply

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