Messier 84 or M84 , also known as NGC 4374 , is a giant elliptical or lenticular galaxy in the constellation Virgo . Charles Messier discovered the object in 1781 in a systematic search for "nebulous objects" in the night sky. It is the 84th object in the Messier Catalogue and in the heavily populated core of the Virgo Cluster of galaxies , part of the local supercluster .
5-558: [REDACTED] Messier 84 nucleus by Hubble Space Telescope M84 or M-84 may refer to: Messier 84 , a galaxy in the Virgo Cluster M-84 , a Yugoslav main battle tank M84 machine gun , Yugoslavia M84 camouflage pattern , used by the Danish Army M84 stun grenade , a non-lethal grenade 152 mm field gun-howitzer M84 NORA-A , Yugoslavia M-84 (Michigan highway) ,
10-569: A US state highway M84 mortar carrier , a modified armored personnel carrier [REDACTED] Topics referred to by the same term This disambiguation page lists articles associated with the same title formed as a letter–number combination. If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=M84&oldid=1235936517 " Category : Letter–number combination disambiguation pages Hidden categories: Short description
15-575: A very low rate. The number of globular clusters is 1,775 ± 150 , which is much lower than expected for an elliptical galaxy. Viewed from Earth its half-light radius, relative angular size of its 50% peak of lit zone of the sky, is 72.5″ , thus just over an arcminute . Two supernovae have been observed in M84: SN 1957B and SN 1991bg . Seen between these dates, it may have bore a third, SN 1980I – which may have been in either neighboring galaxy NGC 4387 or M86 . This high rate of supernovae
20-416: Is different from Wikidata All article disambiguation pages All disambiguation pages Messier 84 This galaxy has morphological classification E1, denoting it has flattening of about 10%. The extinction -corrected total luminosity in the visual band is about 7.64 × 10 L ☉ . The central mass-to-light ratio is 6.5, which, to a limit, steadily increases away from
25-429: The core. The visible galaxy is surrounded by a massive dark matter halo. Radio observations and Hubble Space Telescope images of M84 have revealed two jets of matter shooting out from its center as well as a disk of rapidly rotating gas and stars indicating the presence of a 1.5 × 10 M ☉ supermassive black hole . It also has a few young stars and star clusters , indicating star formation at
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