NGC 6888 - The Crescent Nebula in Cygnus
by Bob and Janice Fera
300mm f/4.9 Ceravolo Astrograph
SBIG STL11000M CCD Camera
Astrodon Filters
HaRGB Composite - 120:75:75:75 minutes
Ha:8x20m R:5x15m G:5x15m B:5x15m
Image acquired with CCDAutopilot
Processed in CCDstack and Adobe Photoshop
Taken June 18, 20, 21, 2009 from Eagle Ridge Observatory, Foresthill, CA