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Taken on June 4, 2004 from Fremont Peak State Park, San Juan Bautista, California and June 5, 2004 from Montebello Open Space Preserve near Palo Alto, California
AP180EDT f/9 imaging scope used at F=1620 (f/9)
AP80/900mm guide scope
AP900GTO mount
SBIG ST10XME imaging camera @-20C
FLI CFW1 Filter wheel
FLI DF2 Digital Focuser
ST7E guide camera @ -15C
Custom Scientific Ha filter 656.3nm/3nm FWHM
Ten exposures of 600 seconds (2x2 binned) at each aiming for Ha (two telescope aimings): 3 hours 20 minutes total exposure time