Open Cluster M39
Photographed by Scott Davis on August 2, 2013
From Courtright Reservoir, CA
Description:
Messier 39, also catalogued as NGC7092, is a large open cluster in the constellation Cygnus. It lies at a distance of approximately 800 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 60-second exposures. A total of 35 light frames, 15 dark frames, and 40 each of flat, dark flat, and bias frames were stacked to create this image. Total integration time is 35 minutes.
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