HaRGB
The PacMan Nebula
Exposure
- LRGB Filters
- 75:40:40:40 @ 15:10:10:10 per sub
- 13 x 30m subs Astronmik 6nm Ha
- 9.75 hours total exposure
Equipment Used
- Tele Vue NP-127is
- SBIG STL-11000M
- Paramount ME
- Tele Vue Focusmaster Focuser
Processing
CCDStack
1) Calibration with flats and darks
2) Registration and align per channel
3) Image registration
4) Normalization (Auto)
5) Data rejection (STD sigma)
6) Median combine
7) Export each channel to TIF
Photoshop CS3:
1) RGB Combine
2) Apply HaRGB technique using multiple Ha as L with increasing opacity
3) 100% center crop
4) Save as JPG 100% Quality