Technical Data
Optics Takahashi FS-128 Apochromatic refractor
Focal Lenght 780 mm
Focal Ratio f/6.1
Exposure Time Ha=200 min (25x480sec )
CCD camera SBIG STL-4020, Astrodon 2" Hydrogen-alpha filter
Processing MaxIm DL, Photoshop 5.5
Location Berkshire, New York
Date of exposure start 9/23/2005
Mount Astro-Physics 1200

nebula 


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Joseph Schaefer 2002