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| | Messier Object 51 |
 | | The famous Whirlpool galaxy M51 was one of Charles Messier's original discoveries: He discovered it on October 13, 1773, when observing a comet, and described it as a "very faint nebula, without stars" which is difficult to see. |
 | | Its companion, NGC 5195, was discovered in 1781 by his friend, Pierre Méchain, so that it is mentioned in Messier's 1784 catalog: `It is double, each has a bright center, which are separated 4'35". |
 | | On June 27, 2005, German amateur Wolfgang Kloehr found SN 2005cs 15"W and 67.3"S of the nucleus of M51 as it was at mag 13.5 (and rising) - this supernova was found to be of type II by the analysis of its spectrum. |
| www.maa.agleia.de /Messier/E/m051.html (626 words) |
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