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Triangulum Galaxy (M33) Photographed by Scott Davis on August 3, 2013 From Courtright Reservoir, CA   Description: The Triangulum Galaxy, catalogued as M33 and NGC598, is a large spiral galaxy located in the constellation Triangulum. It is the third-largest member of our local group of galaxies (the Milky Way and Andromeda being the top two) and lies approximately 2.8 million light years from Earth.   Imaging Camera: Canon EOS 60D   Imaging Scope/Lens: Orion Astrograph 8" f/3.9 Newtonian   Mount/Tripod: Celestron CGEM (Hypertuned)   Guide Scope/Camera: Orion Shorttube 80mm w/ Starshoot Autoguider   Exposure Details: Camera settings were ISO 1600 with 180-second exposures. A total of 36 light frames, 10 dark frames, and 40 each of flat, dark flat, and bias frames were stacked to create this image. Total integration time is 1 hour, 48 minutes.

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