The Messier Ten Minute Challenge
M9 - Globular Cluster in Ophiuchus
Messier 9 (NGC 6333) was discovered by Charles Messier in 1764. It is
one of the nearer globular clusters but is still significantly dimmed
by interstellar dust, especially to the north and west.
http://www.martin-nicholson.info/ten...allenge/m9.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/