Click image to enlarge, click here for highest resolution
click
here to see a widefield version:
To
see a closeup in Halpha only, click here
To
see a closeup in Halpha and [OIII], click here
To
see a closeup in [SII], Halpha and [OIII], click here
[SII] = Red, Halpha = Green, [OIII] = Blue
Taken on November 13, 14, 20, 21, 2005 from my backyard in Castro Valley, California
AP180EDT f/9 imaging scope used at f/6.75
AP 0.75x Telecompressor
FLI IMG6303E imaging camera @ -26C
AP80/900mm guidescope
SBIG ST7E guide camera
FLI CFW7 color filter wheel
6nm FWHM AstroDon Ha 50mm AR-Coated filter
6nm FWHM AstroDon [SII] 50mm AR-Coated filter
8 exposures of 20 minutes through Ha filter
8 exposures of 20 minutes through [SII] filter
10 exposures of 20 minutes through [OIII] filter
8 hours 40 minutes total exposure time