The Swan Loop

 Posted: Aug 9th, 2026
Technical Info
Telescope/Lens: Samyang 135mm f/2.0 ED UMC
Camera: ZWO ASI 533MC Pro
Mount: Sky-Watcher star adventurer GTi
Guide Scope: svbony sv165
Guide Camera: zwo asi662mc
Software: DeepSkyStacer,pixinsight,PS
Exposure:
31 x 300" ISO/Gain: 100 - LAIDA dual band Ha OIII 7нм
 Kichmengskiy Gorodok Vologodskaya Oblast, Russia
 Aug 8th, 2026
2 h 35 m
103
Resolution: 5680x5770 px
Scale: 3833 KB

I tried processing it in the HOO palette, but nothing decent came out with the stars (though on individual frames the stars look fine). Maybe over time I'll figure out what and where I'm doing wrong—I just dimmed them as much as possible.

Updated
  15 Aug, 2026
  2 h 25 m
Finally figured out the stars — the whole problem was in the crooked stacking in DSS. In PixInsight I couldn't stack, so I had to learn Siril. For a long time I…
Current photo
  9 Aug, 2026
  2 h 35 m
I tried processing it in the HOO palette, but nothing decent came out with the stars (though on individual frames the stars look fine). Maybe over time I'll fig…
  5 Aug, 2026
  2 h 0 m
The stars are a real problem. I can't shake the feeling that something is wrong with the lens, or maybe it's just a lack of experience in processing.
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