The Iris Nebula (NGC7023, Caldwell 4) in LRGB

 Posted: Jul 22nd, 2023
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NGC
IC
HD
Technical Info
Telescope/Lens: Sky-Watcher 300/1500
Camera: ZWO ASI 1600MM-Cool
Mount: iOptron CEM70
Guide Scope: SW300/1500
Guide Camera: ZWO120-mini
Software: NINA, ASTAP, MaxIm DL 6.11, FITStacker, PhotoShop
Exposure:
40 x 120" ISO/Gain: 139 - L
20 x 120" ISO/Gain: 139 - R
20 x 120" ISO/Gain: 139 - G
20 x 120" ISO/Gain: 139 - B
Green zoneLight Pollution:
 Novoe Dubovoe, Russia
 Jul 22nd, 2023
3 h 20 m
1568
75%, crop
Resolution: 3276x2408 px
Scale: 12749 KB
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