NGC6231 Brilliant Open Cluster in Scorpius
Orion 8" f/4 Astrograph

 
 This
            cluster in the very southernmost reaches of the constellation
            of Scorpius is one of the most stunning objects of its type in
            the entire sky. Nested in a rich Milky Way star field filled
            with dark nebula and bright wisps of emission as well. This cluster
            has the informal name "The christmas tree cluster"
            because of its shape.
 

            
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Optics:  8" f/3.9 Newtonian Astrograph w/Baader MPCC Coma Corrector
Platform:  Homemade GEM with Byers Starmaster Drive 
Camera:  Hutech Modified Canon XTi @ ISO800
Exposure:  3x 5m
Location:  Happy Jack, Arizona
Elevation:  6850 ft.
Sky:  Seeing  8/10, Transparency 6/10
Outside Temperature:  45F
Processing Tools:  Photoshop CS2, Images Plus 3.82
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