Edwin Hubble

In Astronomy, the catalogs Messier is a astronomical Catalog of objects of diffuse aspect created in 1774 by Charles Messier in order to help the researchers of Comète S not to confuse those with objects then relatively strange ( Nébuleuse S and Amas of stars) but fixed compared to stars.

The first publication of the catalog goes back to 1774 and gathered the first 45 objects. The final catalog, which included/understood 103 objects, was completed in 1781 and was published in 1784 in Connaissance of Times . The objects M104 with M110, were discovered by Messier or his/her friend Pierre Méchain after the publication of 1781. They were added to the catalog only well later, the last having been added in 1966 by Kenneth Glyn Jones.

Currently, this catalog is not useful any more for the comet researchers, but indexes the majority of most beautiful the objects of the deep sky. The numbers of the catalog Messier, noted M1 with M110, continue to be used for these objects.

Thus the Galaxy of Andromède, close to our Galaxy, is called M31 in the Messier catalog and NGC 224 in the catalog NGC.

See too

Literature

  • B. Guillaud-Saumur & O. Réthoré, Objects of Messier , Dunod, 1995,248 p.

Related articles

  • Charles astronomical Messier

  • Catalog

External bonds

  • Page of the SEDS (Students for the Exploration and Development off Space) on the Catalog Messier (French mirror)

  • Messier Catalog in Images
  • Objects Messier - Map Interactive and photographs
  • To undoubtedly find the 110 objects of Messier

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