Open Cluster M103


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By
Catalog
Obj Type
Location
Date Taken:
Smoot
Messier 103
Star cluster
Mayhill, NM
11-07-2008
Description

M103 is an open cluster in the constellation Cassiopeia.  It lies at a distance of about 8500 light years and contains about 175 members.  It has a diameter of about 15 light years.  It was discovered by Pierre Mechain in 1781.  The likely age of this cluster is 20 million years.

Technical Details
Exposure Time:
55 minutes each RGB
Camera:
SBIG STL-11000M
Telescope:
RCOS 16 inch f/8.7 Ritchey-Chretien
Mount:
Software Bisque Paramount ME
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