NGC6888 Crescent Nebula
- Resolution:
- 2950x2942 px
- File size:
- 1980 KB
Technical information
- Telescope/Lens
- celestron 80ED f 7.5/600mm
- Camera
- ZWO ASI 533MC Pro
- Mount
- Sky-Watcher Star Adventurer GTi
- Guide Scope
- svbony sv165
- Guide Camera
- zwo asi662mc
- Accessories
- reducer sv193 ×0.8 asiair mini
- Software
- Siril, pixinsight,PS
- Location
- Кичменгский Городок Вологодская область, Россия
Light pollution
Green, Bortle 4 zone
- Date taken
Exposure
- 80 × 180″ · ISO/Gain: 100 · LAIDA dual band Ha OIII 7нм
Total exposure: 4 h 0 m
Photo versions
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I also take separate flats for each filter. Moreover, it seems the filter wheel needs to be assembled in a clean-room-like environment. Since it doesn't seat perfectly precisely, the dust on the filter must always stay in the same place for the flat to work correctly.
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