by Craig and Tammy Temple
At magnitude 8.00, The Gumball Globular is one of the more faint clusters in Ophiuchus. At one time, it was considered to be a "closely-packed" open cluster rather than a globular. M12 was discovered by Charles Messier on May 30, 1764 and lies approximately 16,000 light-years away from Earth. This image was captured on June 13, 2009. The temperature was 75° F. It is a total of 45 minutes exposure time.
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10" Orion Newtonian f/4.7 w/Baader MPCC
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Atlas EQ-G w/EQMOD, Guided
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Canon 350D (self-modified) w/Astronomik EOS Clip IR filter + 2" Hutech IDAS LPS filter
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9 x 300s @ ISO 400