| M12 (NGC6218) / Globular Cluster, type IX |
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| R.A. | 16h 47m 11.9s (2000.0) |
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| Dec. | -01° 57' 00" (2000.0) |
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| Apparent Size | 9.3' |
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| Real Size | 98 light yrs. |
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| Magnitude | 6.0 |
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| Distance | 19,000 light yrs. |
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M12 is a medium-sized globular cluster found in the pentagon of a constellation of Ophiuchus.
The cluster is positioned at 3.5 degrees northwest of another globular of M10, and C. Messier discovered M12 just next day when he found M10.
M12 is a globular that member stars are gathering very sparse, and you will be able to understand the fact if you compare that with M10.
You can appreciate several star-chains are extending outward from the center with about 5 inches telescopes.
Although the Ophiuchus pentagon contains three Messier's Globular clusters, it can be said that you can enjoy the M12 most easily in those.
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