Friday, March 22, 2019   
Astrophotography Gallery > Star Clusters > Globular Cluster M3
Date: Friday, May 10, 2013
Location: Lemoore, CA
Messier 3, also catalogued as NGC 5272, is a globular cluster located in the constellation Canes Venatici, just west of Arcturus in the constellation Bootes. It is one of the largest and brightest clusters in the sky, estimated to contain approximately 500,000 stars. It is estimated to be over 8 billion years old and is located at a distance of 33,900 light years from Earth.
Mount: Celestron CGEM
Camera: Canon 60D (Stock)
Scope/Lens: Orion Astrograph 8" f/3.9 Newtonian
Guide Scope: Orion ST 80mm f/5 Refractor
Guide Camera: Orion Starshoot Autoguider
Exposure #1 (RGB):
   58 x 35 Seconds @ ISO 800, f/3.9
   15 Darks, 0 Flats/Dark Flats/Bias

Integration: 0 Hours, 33 Minutes, 50 Seconds
Processing: BackyardEOS, PHD, DeepSkyStacker, Adobe Photoshop CS6
(Click Image to View Original Full Size)
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