28 x 20 min
28 x 20 min
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14 x 20 min
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10 x 20 min
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6 x 20 min
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4 x 20min
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Taken on August 10, 13, 15, 16, 17 2007 from my backyard in Castro Valley, Ca.
6x7 SMC Pentax 300mm f/4 medium format camera lens
Finger Lakes IMG6303E imaging camera operated at -26C
Finger Lakes DF2 Digital Focuser
Finger Lakes CFW7 Filter wheel
Takahashi FCT-76 guide scope
SBIG ST7E guide camera
Custom made camera mounting frame
Baader Planetarium 7nm Ha filter (50.8mm unmounted)
28 exposures of 20 minutes for Halpha
9 hours 20minutes total exposure time