Messier 3


Messier 3 (also known as M3 or NGC 5272) is a globular cluster in the constellation Canes Venatici. It was discovered by Charles Messier in 1764, and resolved into stars by William Herschel around 1784. This cluster is one of the largest and brightest, and is made up of around 500,000 stars. It is located at a distance of about 33,900 light-years away from Earth. I am not highly skilled at processing clusters, but you can get a pretty good idea of the structure of M3 and the star color variations. This image was taken on May 19, 2011 with a total exposure time of 90 minutes. Click on the image to enlarge it.

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