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Taken on July 15, 2006 from my backyard in Castro Valley, California
Stinger 450 Classical Cassegrain (18" f/12.6)
Lumicon Giant Easy Guider with Focal reducer for final: F= 3366mm, f/7.1
Finger Lakes CM10 MaxCam imaging camera operated at -26C
Robofocus
Finger Lakes CFW1 Filter wheel
SBIG ST7E guide camera
Custom Scientific 3nm FWHM Ha filter (50mm diameter)
Six exposures of 30 minutes
Three hours total exposure time