Question

what is the mass of black whole?

Answers

bobpursley
They vary. Limits on the mass of a black hole have a miniumu mass of 2E-8kg and a maximum mass near 2E40kg

The essence of a black hole is NOT its mass, but its density.
drwls
The sum of the masses of the parts of the whole.

If you mean black HOLE, it can have any value if the density is high enough. Stephen Hawking has postulated "mini black holes" but none have been found so far. Black holes formed by the supernova explosions of stars have masses of several suns or more. Black holes at the centers of galaxies have ben found to have masses of millions suns.

http://www.space.com/scienceastronomy/080903-our-black-hole.html

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