Red = Halpha
Green = [OIII]
Blue = [OIII] + 0.15 * Halpha (to simulate Hbeta emission)
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Taken on August 31 and September 1-2, 2005 from my backyard in Castro Valley, California
Pentax Takumar 150mm f/2.8 medium format camera lens stopped down to f/4
Finger Lakes CM10XME imaging camera operated at -26C
Custom made camera mounting frame
Finger Lakes DF2 Digital Focuser
Finger Lakes CFW7 Filter wheel
Takahashi FCT-76 guide scope
SBIG ST7E guide camera
Custom Scientific 3nm Ha filter (50mm unmounted)
Custom Scientific 3nm [OIII] filter (50mm unmounted)
six exposures of 30 minutes for Halpha
ten exposures of 30 minutes for [OIII]
eight hours total exposure time