Reflection-emission nebula "Cocoon" (Cocoon Nebula, IC 5146, Caldwell 19, Barnard 168)
Photo description / processing
Reflection-emission nebula "Cocoon" (Cocoon Nebula, IC 5146, Caldwell 19, Barnard 168)
Red color - region of ionized hydrogen (H II)
Equipment:
Camera Canon EOS 200 Da.
Telescope Synta SkyWatcher 150/750, F/5
Mount HEQ-5 Pro
Bahtinov mask
Polar finder camera iOptron iPolar
Coma corrector Baader MPCC Mark III
Guidescope SVBONY 60/240, F/4
Guide camera ZWO ASI 120 Mini
Flat-panel Gemini 190 mm
Software for imaging:
Astrophotography Tool, SharpCap (polar alignment), EQ-Mode, ASCOM, Cartes Du Ciel, PHD2
Suburb of Chelyabinsk, Kremenkul area.
Red light pollution zone. Class 7 on the Bortle scale.
Imaging 15-16.05.2026
Total 131 Light frames of 60 seconds each + 20 Dark frames + 20 Bias frames + 20 Flat frames
ISO 800
Imaging 16-17.05.2026
Total 175 Light frames of 60 seconds each + 20 Dark frames + 20 Bias frames + 20 Flat frames
ISO 800
Total integration time Σ=5h06'00"
Software for post-processing:
DeepSkyStacker, FitsWork, FITStacker, Lightroom, StraNet2GUI, Photoshop, Topaz Denoise AI
Technical information
- Telescope/Lens
- Sky-Watcher 150/750
- Camera
- Canon 200 Da
- Mount
- Sky-Watcher HEQ5 PRO SynScan
- Guide Scope
- SVBONY 60/240
- Guide Camera
- ZWO ASI 120 Mini
- Accessories
- Baader MPCC Mark III, iOptron iPolar, Bahtinov mask, Gemini 190 mm
- Software
- APT, DeepSkyStacker, FitsWork, FITStacker, Lightroom, StraNet2GUI, Photoshop, Topaz Denoise AI
- Location
- Chelyabinsk, Kremenkul', Russia
Light pollution
Red, Bortle 7 zone
- Date taken
Exposure
- 131 × 60″ · ISO/Gain: 800 ·
- 175 × 60″ · ISO/Gain: 800 ·
Total exposure: 5 h 6 m
Comments
There are no comments on this photo yet.
Sign up or sign in to leave a comment.