The Messier Ten Minute Challenge

M101 - Galaxy in Ursa Major

The spiral galaxy M101 is a beautiful, large, face-on spiral galaxy.
Several knots of emission nebulosity and star forming regions with NGC
designations can be seen in this image. M101 is of a notable non-
symetrical shape with its core being considerably displaced. Cepheid
variables suggest a distance of about 22 million light-years.

http://www.martin-nicholson.info/ten...lenge/m101.htm

Martin Nicholson, Daventry, England.
http://www.martin-nicholson.info/1/1a.htm

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