The Pinwheel Galaxy
Photographed by Scott Davis on April 14, 2013
From Eastman Lake, California
 
Description:
The Pinwheel Galaxy, catalogued as M101 and NGC5457, is a beautiful face-on spiral galaxy located in the constellation Ursa Major. It rests approximately 21 million light-years from Earth. There are several other galaxies also appearing clearly in this image. In the upper-left is NGC5474, a peculiar dwarf galaxy. Near the top center of this image is another dwarf galaxy, NGC5477. In the upper right is NGC5473, an elliptical galaxy.
 
Imaging Camera:
Canon EOS 60D
 
Imaging Scope/Lens:
Orion Astrograph 8" f/3.9 Newtonian
 
Mount/Tripod:
Celestron CGEM
 
Guide Scope/Camera:
Orion Shorttube 80mm w/ Starshoot Autoguider
 
Exposure Details:
Camera settings were ISO 1600 with 120-second exposures. A total of 50 light frames and 20 dark frames were stacked to create the final image. Stacked using Deep Sky Stacker and processed in Adobe Photoshop CS6 using Scott Rosen's DSLR LLRGB method.

 
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