Sunday, May 26, 2019   
Astrophotography Gallery > Star Clusters > Open Cluster M46
Date: Sunday, February 10, 2013
Location: Ahwahnee Hills Observatory, California
Messier 46, also known as NGC2437, is a large open cluster in the constellation Puppis. It lies approximately 5,500 light years from Earth. A planetary nebula, NGC2438, also appears in this image. Astronomers do not believe that the nebula lies within M46; rather, it is just superimposed on it.
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):
   40 x 50 @ ISO 1600, f/3.9
   15 Darks, 0 Flats/Dark Flats/Bias

Integration: 0 Hours, 33 Minutes, 20 Seconds
Processing: BackyardEOS, PHD, DeepSkyStacker, Adobe Photoshop CS6
(Click Image to View Original Full Size)
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