NGC 7000 M25C

The North American Nebula

Exposure
- 6x10-minute sub exposures
- 60 minutes total exposure

Equipment Used
- Tele Vue NP-127is
- Starlight Xpress SVXF-M25C
- Paramount ME
- Astronomik 6nm Ha Filter

Processing
CCDStack
1) Calibration with flats and bias frames
2) Debayer into Red Channel Only
3) Image registration
4) Normalization (Auto)
5) Data rejection (STD sigma)
6) Median combine
7) Deconvolution, Positive Constraint, 50 interations

Photoshop CS3:
1) Slight Curves Enhancement
2) Save as PNG-24