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#1
February 29th 08, 10:23 AM
posted to sci.astro
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M81 - Galaxy in Ursa Major
The Messier Ten Minute Challenge
M81 - Galaxy in Ursa Major Messier 81 (NGC 3031) in Ursa Major is one of the nearest galaxies beyond the Local Group. The bright nucleus, well defined spiral arms and dark dust lanes - with one of these running straight through the disk - make this spiral galaxy an attractive target. Studies of the variable stars in M81 have yielded a distance of 11.8 million light- years. http://www.martin-nicholson.info/ten...llenge/m81.htm Martin Nicholson, Daventry, England. http://www.martin-nicholson.info/1/1a.htm http://mira.aavso.org/pipermail/aavs...ry/014023.html 
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