Messier 87 (also known as Virgo A or NGC 4486, ) is a supergiant elliptical galaxy in the constellation Virgo. One of the most massive galaxies in the local universe, it is notable for its large population of globular clusters—M87 contains about 12,000 compared to the 150-200 orbiting the Milky Way—and its jet of energetic plasma that originates at the core and extends outward at least 1,500 parsecs (4,900 light-years), travelling at relativistic speed. (Visible toward 5pm from the galaxy.) It is one of the brightest radio sources in the sky. The jet is probably powered by a prograde accretion disk around a spinning supermassive black hole.
The distance estimate is 16.4 ± 0.5 megaparsecs (53.5 ± 1.63 million light-years).