Messier 67


Messier 67 (also known as M67 or NGC 2682) is an open cluster in the constellation of Cancer. M67 is not the oldest known open cluster, but there are few Galactic clusters known to be older, and none of those are as close as M67. M67 is an important laboratory for studying stellar evolution, since the cluster is well populated, obscured by negligible amounts of soot, and all its stars are at the same distance and age, except for approximately 30 anomalous blue stragglers, whose origins are not fully understood. This is a 90 minute image taken February 23, 2012. Click on the image for a close up.

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