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North American Nebula in Emission-Line
Type Nebula
Constellation Cygnus
Distance 1,500 ly
More Info
Date 20 Jul 2012 (Summer)
Place Carlsbad, CA
Exposure Data SII:Ha:OIII 120:120:120 mins @ -10C
SII 8x15, Ha 8x15, OIII 8x15 (bin 1x1) as RGB
Notes Ha also used as the Luminance layer
Optics Takahashi FSQ-106N Refractor
Focal Length 530mm @f/5
Mount Astro-Physics 900GTO
Camera SBIG ST-10XME
Focuser Robo-Focus
Filters CFW10A, Astrodon 3nm SII, Ha, OIII
Software Maxim DL, Photoshop