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Taken on June 27 and July 6 & 10, 2008 from my backyard in Castro Valley, California
Stinger
450 Classical Cassegrain (18" f/12.6)
Lumicon Giant Easy Guider without Focal reducer for final: F= 5760mm, f/12.6
Finger Lakes Proline PL9000 imaging camera operated at -35C
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)
42 exposures of 10 minutes binned 2x2 through Halpha filter
Seven hours total exposure time