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M91 - Galaxy in Coma Berenices
The Messier Ten Minute Challenge
M91 - Galaxy in Coma Berenices Messier 91 (NGC 4548) is the faintest object in Messier's catalog. It is an attractive barred spiral galaxy and a member of the Virgo Cluster. The bar is very conspicuous, lying at position angle of 65 degrees and the galaxy has a recession velocity of only about 400 km/ sec - well below the average for the Virgo cluster which is 1100 km/ sec. http://www.martin-nicholson.info/ten...llenge/m91.htm Martin Nicholson, Daventry, England. http://www.martin-nicholson.info/1/1a.htm |
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