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Schwarzschild radius

In astronomy, a black hole's Schwarzschild radius is a radius length of influence of the black hole's event horizon.

The equation for the Schwarzschild radius is

where

R_sch is the Schwarzschild radius,

6.67 10^?11 N m² / kg²

M is the mass of the black hole

is the speed of light squared

(299,792,548 m/s)² = 8.98755 × 10¹⁶ m²/s²

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