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M13 - Globular Cluster in Hercules
The Messier Ten Minute Challenge
M13 - Globular Cluster in Hercules Discovered by Halley in 1714, M13 (NGC 6205) is one of the most prominent and best known globulars in the northern hemisphere. At a distance of 25,100 light years it is 145 light years across. http://www.martin-nicholson.info/ten...llenge/m13.htm Martin Nicholson, Daventry, England. My website is at http://www.martin-nicholson.info/1/1a.htm My informal Astronomical Blog is at http://ukastronomy.livejournal.com/ |
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