The Messier Ten Minute Challenge

M10 - Globular Cluster in Ophiuchus

M10 (NGC 6254), discovered by Messier in 1764, is one of many globular
clusters that can be found in Ophiuchus.

http://www.martin-nicholson.info/ten...llenge/m10.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/