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The Messier Ten Minute Challenge
M6 - Open Cluster in Scopius The open cluster M6 (NGC 6405) is also known as the Butterfly Cluster. At a distance of about 1,600 light-years the diameter of the cluster is 12 light-years. The age of the cluster is said to be between 95 and 100 million years. http://www.martin-nicholson.info/ten...allenge/m6.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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