Technical Data
Optics Takahashi FS-128 Apochromatic refractor
Focal Lenght 780 mm
Focal Ratio f/6.1
Exposure Time Lum=5x430 sec RGB=3x430sec each -35 degrees
CCD camera SBIG STL-4020, Astroson 2" Lum,RGB filters
Processing MaxIm DL, Photoshop 5.5
Location Backyard observatory, Berkshire, New York
Date of exposure 4/29/2006
Mount Astro-Physics 1200

galaxy 


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Joseph Schaefer 2002