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Taken on July 27, 2007 from my backyard in Castro Valley, California
Finger Lakes CM10 imaging camera operated at -25C
6x7 SMC Pentax 200mm f/4 medium format camera lens
Finger Lakes PDF Digital Focuser
Finger Lakes CFW4-5 Filter wheel
Takahashi FCT-76 guide scope
SBIG ST7E guide camera
Baader Planetarium Ha filter (50mm x 50mm square)
Sixteen exposures of 20 minutes for Halpha
Five hours 20 minutes total exposure time