Caldwell 20, IC 5070. (reprocessed)

 Posted: Apr 2nd, 2026
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NGC
IC
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Technical Info
Telescope/Lens: Canon EF-S 55-250mm
Camera: Canon 1100Da
Mount: Штатив
Guide Scope: ручное ведение
Software: Sequator, Siril 1.4 beta2, Starnet++ GUI, Adobe Lightroom.
Exposure:
120 x 5" ISO/Gain: 1600 - f5.0, 100mm.
Yellow, Bortle 5 zone:
 S Rameno Syzranskiy R-N, Russia
 Nov 1st, 2025
10 m
188
Resolution: 2984x2310 px
Scale: 2893 KB
I played around with the channels on an old photo using Siril. I removed the blue channel, duplicated the red channel with hydrogen (placed it in R and G), and put the green channel in B. The result seems better, but I made a mistake back then during capture — I should have set the exposure to 3 seconds to avoid the blur that's present now.

Crop of the frame.
Current photo Updated
  2 Apr, 2026
  10 m
I played around with the channels on an old photo using Siril. I removed the blue channel, duplicated the red channel with hydrogen (placed it in R and G), and…
  4 Nov, 2025
  10 m
So I finally upgraded my setup a bit. On the very day of delivery, I decided to test it out, and I chose the North America Nebula because it's quite bright and…
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