click image to enlarge, click here for highest resolution
Taken on September 26 from my backyard in Castro Valley, California and September 27, 2008 from my ranch near Mariposa, California
Astro-Physics AP180EDT f/9 used with field flattener
Finger LakesMicroline ML4022 imaging camera operated at -30C
Robofocus
Finger Lakes CFW4-5 Filter wheel
SBIG ST7E guide camera
Baader Planetarium 7nm FWHM Ha filter (50 x 50 mm squarer)
Custom Scientific 4.5nm FWHM [OIII] filter (50mm diameter)
12 exposures of 10 minutes through Halpha filter
20 exposures of 10 minutes through Sulfur filter
28 exposures of 10 minutes through Oxygen filter
Ten hours total exposure time
Interesting objects noted, click for higher resolution