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Supermassive black hole - Wikipedia


A supermassive black hole (SMBH) is the largest type of black hole, on the order of hundreds of ... First, the average density of a supermassive black hole (defined as the mass of .... Larger still ...

Most Massive Black Hole Known Tips Scales at 6.6 Billion Suns


Jan 12, 2011 ... While that seems far, it's actually the closest black hole of its weight class to ... to come by without knowing how much mass resides in the black hole, how ... the technology to do so does not currently exist, researchers said.

How much can a black hole weigh? - The Astronomy Cafe


They can 'weigh' anything from 0.00001 grams to nearly the mass of the ... Recently, black holes have been discovered in the cores of globular clusters with  ...

Lake Afton Public Observatory's Amazing Facts about Black Holes


The weight of an object is determined by the mass of an object and how much gravity is affecting the mass. The force of gravity near a black hole is extremely ...

How much does a black hole weigh? - Quora


The mass of a black hole determines its radius R_s = 2GM/c^2 therefore Mass = ( R_s)(c^2)/2G. This is the bare mass - it does not include the gravitational deficit ...

How Do Scientists Weigh a Supermassive Black Hole? | Smart News


Jun 22, 2015 ... A new method puts the mass of one black hole at 140 million times the mass ... simulations to figure out how much black hole actually weighs.

Astronomers Weigh Heaviest Black Hole Yet | WIRED


Jan 12, 2011 ... SEATTLE — The black hole in the nearby galaxy M87 weighs in at 6.6 ... of black hole measures, it can't do the biggest ones,” Gebhardt said.

Supermassive Black Hole Sagittarius A* | NASA


Supermassive black hole Sagittarius A* (Sgr A*) is located in the middle of the ... are seen in stellar-mass black holes that weigh about ten times that of the Sun, .... the authors found a turbulent velocity – that is, the average speed of random ...

Primordial Black Holes - SETI@home


A black hole that weighs as much as the sun would have a radius of 3 km. ... It contains no ordinary particles, but it does contain "virtual" particles, which appear  ...

How do you weigh a supermassive black hole? - Slate


Jul 16, 2008 ... Astronomers love black holes for the same reasons you do, but we also ... On average -- that is, if you do this for a lot of galaxies -- this method ...