Image spcefications:
- Exposure: 5 hours, LRGB = 210:30:30:30 minutes
- Camera: SBIG ST-8300M, Temp -25 ° C and -20 ° C, Baader LRGB filters
- Instrument: TEC 140 with field flattener, focal distance 980 mm
- Mount: Losmandy G11
- Guiding: TS Off Axisguider, Starlight Xpress Lodestar autoguider and PHD
- Location: Puimichel and Etoile St. Cyrice, France
- Sky Quality Meter: between 21,56 and 21,31
- Ambient temperature: between 21° C and 10° C
- Date: 25 and 27 august 2011
Image acquisition with ImagesPlus 4.0 Camera Control with dither:
- 21 Luminance of 10 min, binned 1x1
- 6 Red + 6 Green + 6 Blue of 5 min, binned 2x2
- 20 Flat fields per channel with Aurora Flatfield panel
At home, camera in fridge:
- 20 Dark frames of 10 min + 20 Dark frames of 5 min
- 20 Flat darks (per channel) + 20 Bias frames
Processing in ImagesPlus 3.82:
- Automatic Image Set Processing per channel: calibrate, normalize, grade
- Align and combine (Min Max Excluded Average)
- Digital Development (DDP)
Processing in Registar:
- Align and combine Red, Green and Blue results
- Align Luminance and RGB
Processing in Photoshop CS3:
- Combine Luminance and RGB with Lab Color (Split RGB and Combine Lum, a, b)
- Curves
- Levels
- Saturation
- Shadow/Highlight
- Color Balance
- Plugin: Noise Ninja
- Noel Carboni's astronomy tools: Star size reduction
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