The Cygnus Loop

 Posted: Aug 21st, 2026
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NGC
IC
HD
Technical Info
Telescope/Lens: ZWO Seestar S30 Pro
Camera: Sony IMX585 color sensor (1/1.2-inch format)
Mount: ZWO Seestar S30 Pro (EQ mode)
Software: Siril (THX2 Naztronomy and VeraLux!)
Exposure:
760 x 20" ISO/Gain: 0 - taken over 3 mosiac sessions (packed-up between sessions)
83 x 30" ISO/Gain: 0 - 1 mosaic session
129 x 60" ISO/Gain: 0 - 1 mosaic session
Yellow, Bortle 5 zone:
 Southern Manitoba, Canada
7 h 4 m
8
Resolution: 5051x2841 px
Scale: 74925 KB

Same stack as previous image up to and including StarNet Star Removal.  Then applied NarrowbandNormalization.py (thank you Cuiv, The Lazy Geek! (...he's not that lazy!)), then Veralux HMS and Curves.  I think this approaches a Faux Hubble Palatte SHO, faux due to hardware limitations of the Seestar S30 Pro and also due to my inexperience.  That being confessed, I'm still happy with this variation.  Clear skys predicted for tomorrow night so I'll add more signal if I can then!

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