The North American Nebula Exposure - 2x30-minute sub exposures unguided - 60 minutes total exposure Equipment Used - Tele Vue NP-127is - SBIG STL-11000M - Paramount ME - Astronomik 6nm Ha Filter Processing CCDStack 1) Calibration with darks 2) Image registration 3) Maximum Combine Photoshop CS3: 1) Slight Curves Enhancement 2) Save as JPG Maximum Quality
