Rosette nebula NGC2237
Photo description / processing
Test approach with Baader Hα 7nm and OIII 4nm narrowband filters on a fast lens. In OIII signal is insufficient filter up to f3.5 and more.
Technical information
- Telescope/Lens
- Zeiss Apo Sonnar 135mm f/2 Lens
- Camera
- ZWO ASI1600MM Pro
- Mount
- Sky-Watcher HEQ5 Pro
- Software
- Siril
- Location
- Salcininkai, Lithuania
Light pollution
Green, Bortle 4 zone
- Date taken
Exposure
- 40 × 120″ · ISO/Gain: 139 · Ha ·
- 70 × 120″ · ISO/Gain: 139 · Olll ·
Total exposure: 3 h 40 m
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