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Globular Cluster Messier 2
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Globular Cluster Messier 2

April 18, 2005
This image of the globular cluster Messier 2 (M2) was taken by GALEX on August 20th 2003. This image is a small section of a single All Sky Imaging Survey exposure of only 129 seconds in the constellation Aquarius. This picture is a combination of GALEX images taken with the FUV (colored blue) and NUV detectors (colored red).

Globular clusters are gravitationally bound systems of hundreds of thousands of stars that orbit in the halos of galaxies. The globular clusters in our Milky Way galaxy contain some of the oldest stars known. M2 lies 33,000 light years from our Sun and contains stars distributed in a spherical system with a radius of approximately 100 light years.


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