Open Cluster M37
Photographed by Scott Davis on February 10, 2013
From Ahwahnee Hills Observatory
Messier 37, also known as NGC2099, is a bright open cluster in the constellation Auriga. It is a very dense cluster, having over 500 confirmed member stars at a distance of approximately 4,500 light years from Earth.
Imaging Camera:
Canon EOS 60D
Imaging Scope/Lens:
Orion Astrograph 8" f/3.9 Newtonian
Celestron CGEM
Guide Scope/Camera:
Orion Shorttube 80mm w/ Starshoot Autoguider
Exposure Details:
Camera settings were ISO 1600 with 50-second exposures. This image is a composite of 10 light frames and 15 dark frames.

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