MESSIER 83


'Messier 83' (also known as the ''Southern Pinwheel Galaxy'', ''M83'' or ''NGC 5236'') is an intermediate spiral galaxy approximately 15 million light-years away in the constellation Hydra. It is one of the closest and brightest barred spiral galaxies in the sky, making it visible with binoculars. Six Supernovae (SN 1923A, SN 1945B, SN 1950B, SN 1957D, SN 1968L and SN 1983N) have been observed in M83.

Contents
History
Nearby galaxies and galaxy group information
See also
External links
References

History


Nicolas Louis de Lacaille discovered M83 in 1752 at the Cape of Good Hope[1]. Charles Messier added it to his catalogue of nebulous objects (now known as the Messier Catalogue) in March 17811.

Nearby galaxies and galaxy group information


M83 is at the center of one of two subgroups within the Centaurus A/M83 Group, a nearby group of galaxies.[2] Centaurus A is at the center of the other subgroup. These two groups are sometimes identified as one group[3][4] and sometimes identified as two groups.[5] However, the galaxies around Centaurus A and the galaxies around M83 are physically close to each other, and both subgroups appear not to be moving relative to each other.[6]

See also



★ Pinwheel Galaxy - ''a similar face-on spiral galaxy''

External links



★ M83, SEDS Messier pages

★ Spiral Galaxy Messier 83 at the astro-photography site of 'Mr. Takayuki Yoshida.'

References


1. Messier's Nebulae and Star Clusters, K. G. Jones, , , Cambridge University Press, 1991, ISBN 0-521-37079-5
2. New distances to galaxies in the Centaurus A group, I. D. Karachentsev, M. E. Sharina, A. E. Dolphin, E. K. Grebel, D. Geisler, P. Guhathakurta, P. W. Hodge, V. E. Karachetseva, A. Sarajedini, P. Seitzer, , , Astronomy and Astrophysics, 2002
3. Nearby Galaxies Catalog, R. B. Tully, , , Cambridge University Press, 1988, ISBN 0-521-35299-1
4. Groups of galaxies within 80 Mpc. II - The catalogue of groups and group members, P. Fouque, E. Gourgoulhon, P. Chamaraux, G. Paturel, , , Astronomy and Astrophysics Supplement, 1992
5. General study of group membership. II - Determination of nearby groups, A. Garcia, , , Astronomy and Astrophysics Supplement, 1993
6. The Local Group and Other Neighboring Galaxy Groups, I. D. Karachentsev, , , Astronomical Journal, 2005


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