Messier Index/M83

Messier 83 320px An w:ESO image of Messier 83.Credit: ESO. w:J2000 13 37 00.9NASA/IPAC Extragalactic Database Results for NGC 5236 http://nedwww.ipac.caltech.edu/ 2006-12-08 -29 51 57 SAB(s)c 14.7 Mly (4.5 Mpc)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 New distances to galaxies in the Centaurus A group Astronomy and Astrophysics 2002 385 21–31 http://adsabs.harvard.edu/abs/2002A&A...385...21K 10.1051/0004-6361:20020042 513 ± 2 km/s 8.2 12′.9 × 11′.5 Hydra NGC 5236, UGCA 366, PGC48082, Southern Pinwheel Galaxy,SIMBAD astronomical database Results for M83 http://simbad.u-strasbg.fr/simbad/ 2007-05-02 Messier 83 (also known as the Southern Pinwheel Galaxy, M83 or NGC 5236) is an w:intermediate spiral galaxy approximately 15 million w:light-years away in the w:constellation Hydra. It is one of the closest and brightest barred spiral galaxies in the sky, making it visible with w:binoculars. Six w:Supernovae (w:SN 1923A, w:SN 1945B, w:SN 1950B, w:SN 1957D, w:SN 1968L and w:SN 1983N) have been observed in M83. History Pierre Mechain discovered M83 in 1752 at the w:Cape of Good Hope.K. G. Jones 1991 Messier's Nebulae and Star Clusters 2nd Cambridge University Press Cambridge 0-521-37079-5 w:Charles Messier added it to his catalogue of nebulous objects (now known as the w:Messier Catalogue) in March 1781. On w:16 June w:2008 NASA's w:Galaxy Evolution Explorer project reported finding large numbers of new stars in the outer reaches of the galaxy. It had hitherto been thought that these areas lacked the materials necessary for star formation. Nearby galaxies and galaxy group information M83 is at the center of one of two subgroups within the w:Centaurus A/M83 Group, a nearby w:group of galaxies.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 New distances to galaxies in the Centaurus A group Astronomy and Astrophysics 2002 385 21–31 http://adsabs.harvard.edu/abs/2002A&A...385...21K 10.1051/0004-6361:20020042 w:Centaurus A is at the center of the other subgroup. These two groups are sometimes identified as one groupR. B. Tully 1988 Nearby Galaxies Catalog Cambridge University Press Cambridge 0-521-35299-1P. Fouque, E. Gourgoulhon, P. Chamaraux, G. Paturel Groups of galaxies within 80 Mpc. II - The catalogue of groups and group members Astronomy and Astrophysics Supplement 1992 93 211–233 http://adsabs.harvard.edu/abs/1992A&AS...93..211F and sometimes identified as two groups.A. Garcia General study of group membership. II - Determination of nearby groups Astronomy and Astrophysics Supplement 1993 100 47–90 http://adsabs.harvard.edu/abs/1993A&AS..100...47G 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.I. D. Karachentsev The Local Group and Other Neighboring Galaxy Groups Astronomical Journal 2005 129 178–188 http://adsabs.harvard.edu/abs/2005AJ....129..178K 10.1086/426368 External links M83, SEDS Messier pages Spiral Galaxy Messier 83 at the astro-photography site of Mr. Takayuki Yoshida. M83 The Southern Pinwheel References