M22
Globular Cluster in Sagittarius

 

            
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 Located
            just over the "handle" of the Teapot shaped constellation
            of Sagittarius, this very bright 5.2 magnitude globular cluster
            is one of the finest in the southern skies. With a diameter over
            half a degree, this object spills out of the eye piece of my
            Newtonian telescope with countless thousands of individual stars
            averaging around 10.7 magnitude each. While this image cannot
            convey the spectacular beauty we see in the eyepiece, it does
            show the colorful star rich field and the smaller globular cluster
            NGC6642 to its upper right (North is up here) a 9th magnitude
            object with dim 16th magnitude stars spanning only 6 arc minutes.
Lens:  Stellarvue SV80s at f/4.8
Exposure: 10 mins at ISO400
Camera: Canon XTi Hutech Modified
Mount:  Home made GEM with Byers Starmaster Drive
Location:  Happy Jack, Arizona
Elevation:  6800 ft.
Sky:  Seeing  8/10, Transparency 10/10
Outside Temperature:  45F
Processing Tools:  Photoshop CS2, Maxim DSLR
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