Caldwell 27 HOO RGB Stars
Photo description / processing
HOO version, Ha from Lextrem, and for the oxygen channels I combined data from two filters (G+B) + (G+B), roughly speaking. Preparing the base for SHO HSO. Stars processed separately with UVIR.
Technical information
- Telescope/Lens
- Askar 71F
- Camera
- ZWO ASI585MC Pro
- Mount
- JUWEI 14
- Guide Scope
- ToupTek GS-200 AR
- Guide Camera
- Zwo ASI662MC
- Accessories
- CAA, EAF, EFW, ASIAIR MINI, Askar Reducer x 0.75, Gemini PowerBox
- Software
- Siril, Adobe Photoshop, Adobe Lightroom, StarNet++
- Location
- Самара, Россия
Light pollution
Orange, Bortle 6 zone
- Date taken
Exposure
- 62 × 300″ · ISO/Gain: 200 · Optolong L-eXtreme ·
- 39 × 300″ · ISO/Gain: 200 · SVBONY SV220 SII OIII ·
- 15 × 60″ · ISO/Gain: 200 · Optolong UV IR Cut ·
Total exposure: 8 h 40 m
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