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Messier Index/M61
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
Messier 61 Tschöke
D.
Hensler, G.; Junkes, N
2000
August
X-rays from the barred galaxy NGC 4303
Astronomy and Astrophysics
360
2
447-456
EDP Sciences
0004-6361
http://arxiv.org/abs/astro-ph/0006361v1
M61, courtesy of w:NOAO w:J2000 Virgo 12 21 54.9NASA/IPAC Extragalactic Database
Results for M 61
http://nedwww.ipac.caltech.edu/
2006-11-18 +04 28 25 10.18 SAB(rs)bc, HIISy2 NGC 4303, UGC 07420, PGC 040001, MCG +01-32-022, USGC U490 NED310, MRC 1219+047
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.
M61 is one of the larger members of the Virgo Cluster.
Six supernovae have been observed in this galaxy: http://www.cfa.harvard.edu/iau/lists/Supernovae.html List of Supernovae 30 December 2008 w:Central Bureau for Astronomical Telegrams
SN 2008in
SN 2006ov
SN 1999gn
SN 1964F
SN 1961I
SN 1926A
thumb|left|400px|Amateur Image of Messier 61 Showing Supernova 2008in on April 16, 2009 Courtesy Hunter Wilson
External links
www.seds.org/messier/m/m061.html
References
thumb|left|Infrared image of M61 taken by the Spitzer Space Telescope