CED214, NGC7822 and Sh2-170 in Halpha

           

click image to enlarge, click here for highest resolution

Ha= red, [OIII] = Green, [OIII] + 15% Ha = Blue (simulates Hbeta)

click image to enlarge, click here for highest resolution

Taken on August 10-11, 2005 from my backyard in Castro Valley, California

Pentax Takumar 150mm f/2.8 medium format camera lens

Finger Lakes CM10XME 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 

Custom Scientific 3nm Ha filter (50mm unmounted)

Custom Scientific 3nm [OIII] filter (50mm unmounted)

seven exposures of 30 minutes for Halpha

eight exposures of 30 minutes for [OIII]

seven and a half hours total exposure time

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