NGC 6888 - Crescent Nebula
Photo description / processing
The Crescent Nebula (also known as NGC 6888, Caldwell 27, Sharpless 105) is an emission nebula in the constellation Cygnus. It formed from the collision of the fast stellar wind of the star WR 136 or HD 192163 with a slower wind ejected by the star when it became a red giant about 250,000–400,000 years ago.
Seestar S50 - EQ-mode
Technical information
- Telescope/Lens
- ZWO Seestar S50
- Mount
- Tripod
- Accessories
- Sky-Watcher Star Adventurer EQ Base
- Software
- Siril, GraXpert, Veralux, CosmicClarity
- Location
- Русилово, Россия
Light pollution
Green, Bortle 4 zone
- Date taken
Exposure
- 500 × 20″ · ISO/Gain: 80 · Duo-band ·
- 1530 × 10″ · ISO/Gain: 80 · Duo-band ·
Total exposure: 7 h 2 m
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