M13 (Hercules cluster) 5-6-2010 - John Crilly (jrcrilly)
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| Title |
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Hercules cluster |
| Description |
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Messier 13 or M13 (also designated NGC 6205 and sometimes called the Great Globular Cluster in Hercules or the Hercules Globular Cluster) is a globular cluster in the constellation of Hercules.
M13 is about 145 light-years in diameter, and it is composed of several hundred thousand stars, the brightest of which is the variable star V11 with an apparent magnitude of 11.95. M13 is 25,100 light-years away from Earth.
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| Date |
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May 11, 2010 |
| Credit |
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Urban Observatory / John Crilly |
| Source |
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John Crilly |
| File Type |
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JPG |
| File Size |
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727KB |
Poll results:
Number 10 overall.
Excellent: one vote
