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Taken on September 28 and October 3 and 4, 2005 from my backyard in Castro Valley, California
Astro-Physics AP180EDT f/9 imaging scope used at f/9 (F=1620mm)
Finger Lakes CM10XME imaging camera operated at -26C
Robofocus
Finger Lakes CFW7 Filter wheel
Astro-Physics 80/900mm guidescope
SBIG ST7E guide camera
Custom Scientific 3nm Ha filter (50mm unmounted)
Custom Scientific 3nm [SII] filter (50mm unmounted)
Custom Scientific 3nm [OIII] filter (50mm unmounted)
seven exposures of 20 minutes for Halpha
ten exposures of 20 minutes for [OIII]
nine exposures of 20 minutes for [SII]
eight hours and 40 minutes total exposure time