Messier 95

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Messier 95
Messier95 spitzer.jpg
M95. Credit: NASA
Observation data (J2000 epoch)
Constellation Leo
Right ascension 10h 43m 57.7s[1]
Declination +11° 42′ 14″[1]
Redshift 778 ± 4 km/s[1]
Distance 32.6 ± 1.4 Mly (10.0 ± 0.4 Mpc)[2]
Apparent magnitude (V) 11.4[1]
Type SB(r)b[1]
Apparent size (V) 3′.1 × 2′.9[1]
Other designations
NGC 3351,[1] UGC 5850,[1] PGC 32007[1]
See also: Galaxy, List of galaxies

Messier 95 (also known as M95 or NGC 3351) is a barred spiral galaxy about 38 million light-years away in the constellation Leo. It was discovered by Pierre Méchain in 1781, and catalogued by Charles Messier four days later. On 16 March 2012, a supernova was discovered in M95.


The center of the galaxy contains a ring-shaped circumnuclear star-forming region with a diameter of approximately 2000 ly (600 pc).[3]

Galaxy group information[edit]

M95 is one of several galaxies within the M96 Group, a group of galaxies in the constellation Leo. The group also includes the Messier objects M96 and M105.[4][5][6][7]


A Type II supernova, designated as SN 2012aw, was discovered in M95 on 16 March 2012.[8][9][10]


  1. ^ a b c d e f g h i "NASA/IPAC Extragalactic Database". Results for NGC 3351. Retrieved 2007-10-03. 
  2. ^ Jensen, Joseph B.; Tonry, John L.; Barris, Brian J.; Thompson, Rodger I.; et al. (2003). "Measuring Distances and Probing the Unresolved Stellar Populations of Galaxies Using Infrared Surface Brightness Fluctuations". Astrophysical Journal. 583 (2): 712–726. Bibcode:2003ApJ...583..712J. arXiv:astro-ph/0210129Freely accessible. doi:10.1086/345430. 
  3. ^ L. Colina; M. L. Garcia Vargas; J. M. Mas-Hesse; A. Alberdi; et al. (1997). "Nuclear Star-forming Structures and the Starburst–Active Galactic Nucleus Connection in Barred Spirals NGC 3351 and NGC 4303". Astrophysical Journal Letters. 484 (1): L41–L45. Bibcode:1997ApJ...484L..41C. doi:10.1086/310766. 
  4. ^ R. B. Tully (1988). Nearby Galaxies Catalog. Cambridge University Press. ISBN 0-521-35299-1. 
  5. ^ P. Fouque; E. Gourgoulhon; P. Chamaraux; G. Paturel (1992). "Groups of galaxies within 80 Mpc. II – The catalogue of groups and group members". Astronomy and Astrophysics Supplement. 93: 211–233. Bibcode:1992A&AS...93..211F. 
  6. ^ A. Garcia (1993). "General study of group membership. II – Determination of nearby groups". Astronomy and Astrophysics Supplement. 100: 47–90. Bibcode:1993A&AS..100...47G. 
  7. ^ G. Giuricin; C. Marinoni; L. Ceriani; A. Pisani (2000). "Nearby Optical Galaxies: Selection of the Sample and Identification of Groups". Astrophysical Journal. 543 (1): 178–194. Bibcode:2000ApJ...543..178G. arXiv:astro-ph/0001140Freely accessible. doi:10.1086/317070. 
  8. ^ "Deep Sky Videos". Retrieved 19 March 2012. 
  9. ^ "Supernova 2012aw: the pictures!". Retrieved 19 March 2012. 
  10. ^ "List of Recent Supernovae". Retrieved 8 April 2012. 

External links[edit]

Coordinates: Sky map 10h 43m 57.7s, +11° 42′ 14″