Messier 61 (also known as M61 or NGC 4303) is a w:spiral galaxy in the w:Virgo Cluster. It was discovered by w:Barnabus Oriani on w:May 5, w:1779.

Messier 61[1]
Observation data (w:J2000 epoch)
Right ascension12h 21m 54.9s[2]
Declination+04° 28′ 25″[2]
TypeSAB(rs)bc[2], HIISy2[2]
Apparent magnitude (V)10.18
Other designations
NGC 4303[2], UGC 07420[2], PGC 040001[2], MCG +01-32-022[2], USGC U490 NED310[2], MRC 1219+047[2]

M61 is one of the larger members of the Virgo Cluster.

Six supernovae have been observed in this galaxy: [3]

  • SN 2008in
  • SN 2006ov
  • SN 1999gn
  • SN 1964F
  • SN 1961I
  • SN 1926A
Amateur Image of Messier 61 Showing Supernova 2008in on April 16, 2009 Courtesy Hunter Wilson

External links


  1. Tschöke, D. (2000). "X-rays from the barred galaxy NGC 4303". Astronomy and Astrophysics. EDP Sciences. 360 (2): 447–456. ISSN 0004-6361. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help); Unknown parameter |month= ignored (help)
  2. a b c d e f g h i j "NASA/IPAC Extragalactic Database". Results for M 61. Retrieved 2006-11-18.
  3. "List of Supernovae". w:Central Bureau for Astronomical Telegrams. Retrieved 30 December 2008.
Infrared image of M61 taken by the Spitzer Space Telescope