Group Challenge: M42 - The Great Nebula in Orion  
Great Orion Nebula

Great Orion Nebula(Patrick Forster)

Acquisition Date : Feb 7 2010
Camera : Canon 30D modded Hap Griffin
Camera Settings : ISO 1600 50min
Telescope : 8” f/4 Astro-Tech AT8IN imaging Newtonian,prime focus, PHD guide
Mount : Custom made equatorial platform
Adapter / Prime / Afocal / Other : Prime
Processing Package / Processing Applied : Deepskystacker FITS,CS3,Adobe Lightroom2.0,Carboni's Actions
Web Site : http://home.comcast.net/~patforster/astro.html
NOTES : Two sessions,30sec exposures,no filter

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