M56


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By
Catalog
Obj Type
Location
Date Taken:
Smoot
Messier 56
Star cluster
Mayhill, NM
07-31-2008
Description

Discovered by Charles Messier in 1779.

Messier 56 (M56, NGC 6779) is located about half-way between Beta Cygni (Albireo) and Gamma Lyrae. It is one of the less bright Messier globulars, especially lacking the bright core which most globulars have. Nevertheless it is not too difficult to resolve, even at its rather large distance. This led to its classification in concentration class X.

At its distance of 32,900 light-years. its diameter of 8.8 arc minutes corresponds to a linear extension of about 85 light years. Visually, only about the inner third of this great ball, of about 3' diameter is visible.
 

Technical Details
Exposure Time:
RGB (8 x 5 minutes per color channel)
Camera:
SBIG STL-11000M
Telescope:
RCOS 16 inch f/8.7 Ritchey-Chretien
Mount:
Software Bisque Paramount ME
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