The NGC6888 "Crescent" Nebula in Cygnus with ZWO Duoband under the Moon (phase=~0.5)

 Posted: Aug 17th, 2025
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Technical Info
Telescope/Lens: Celestron Advanced C6-N (P150/750mm)
Camera: SvBony SV705C
Mount: Celestron Advanced GT
Guide Scope: Angeleyes 30F4
Guide Camera: Datyson T7M
Software: Siril, StarNet++
Exposure:
60 x 30" ISO/Gain: 252 - ZWO DuoBand
Green zoneLight Pollution:
 Pushchino Chuvashiya, Russia
 Aug 16th, 2025
30 m
526
The NGC6888 "Crescent" Nebula in Cygnus, captured with a ZWO Duoband filter almost at dawn with the Moon (phase=~0.5).
Low integration and a bright background did not allow the oxygen rim to be brought out, but showed hints of it. That is, the filter works and I like how it renders the stars, it leaves some color, not completely extinguishing it like 7nm narrowband filters.
Captured with an SV705C camera on a C6N+CG5GT telescope, guided with T7M+30F4. Exposure 1830sec (30 min, 60x30 sec), Unity Gain 252, offset=20,t=+15.
Imaging in EAA mode in SharpCap Pro.
Processing: Siril+StarNet++.
Imaging location: Puschino, Chuvashia, MPC: M12 Puschino
Resolution: 3856x2180 px
Scale: 8342 KB
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