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Taken on April 25 & 26 and May 1, 2008 from my ranch near Mariposa, Ca.
Astro-Physics AP180EDT f/9 imaging scope used at f/9
Finger Lakes PL3200 imaging camera operated at -45C
Robo-Focus Focuser
Finger Lakes CFW7 Filter wheel
Astro Physics 80/900mm guide scope
SBIG ST7E guide camera
Custom Scientific 4.5nm FWHM Emission Line filters: [SII], Ha and [OIII], 50 mm unmounted
11 exposures of 10 minutes unfiltered for Halpha: 1 hour 50 minutes exposure
19 exposures of 10 minutes unfiltered for [SII]: 3 hours 10 minutes exposure
25 exposures of 10 minutes unfiltered for [OIII]: 4 hours 10 minutes exposure
Total exposure time = 9 hours 10 minutes