The Butterfly Nebula near Gamma Cygni in Cygnus
by Bob and Janice Fera
300mm f/4.9 Ceravolo Astrograph
SBIG STL11000M CCD Camera
Astrodon Filters
HaRGB Composite - 120:90:90:90 minutes
Ha:8x20m R:6x15m G:6x15m B:6x15m
Image acquired with CCDAutopilot
Processed in CCDstack and Adobe Photoshop
Taken June 22, 23, 2009 from Eagle Ridge Observatory, Foresthill, CA