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Schwarzschild Radius

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Posted by Chris James on February 18, 1998 09:22:39 UTC

For those of you who want to calculate sizes of black holes, here's the equation for the Schwarzschild radius:

R = 2GM/c^2

where G is the gravitaional constant, M is the mass of the black hole, and c is the speed of light

1 solar mass is 2E30 kg

c is 3E8 m/sec

Can anyone provide a value G from a physics textbook or some other such reference?

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