Re: Measuring the mass of a black hole

On 15 Feb, 16:59, "PD" <TheDraperFam...@xxxxxxxxx> wrote:
On Feb 15, 4:06 am, "Paul W" <1337...@xxxxxxxxx> wrote:

Hello,

When a black hole candidate is discovered, how do you actually measure
it's mass? Are there different techniques for doing it?

Thanks,
Paul W.

Typically by watching stuff orbit around it.
Watching the Moon's orbit is how we know the mass of the Earth, and
watching the Earth's orbit is how we know the mass of the Sun.

PD

Are there any formulae to use for this?

.

Relevant Pages

  • Re: Measuring the mass of a black hole
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  • Re: Measuring the mass of a black hole
    ... Paul W. ... Typically by watching stuff orbit around it. ... Watching the Moon's orbit is how we know the mass of the Earth, ...
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  • Re: Measuring the mass of a black hole
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