Gum1 Emission Nebula (IC2177) in Halpha

Click image to enlarge, click here for highest resolution

Taken December 2, 2005 from my backyard in Castro Valley, California

AP180EDT f/9 imaging scope

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

6 exposures of 30 minutes through Ha filter

3 hours total exposure time

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