Explain, with reference to the Schwarzschild radius, why the sun isn’t a black hole.

The Schwarzschild radius of the sun can be calculated using Rs= (2GM)/c². Substitute in the mass of the sun (M=210³⁰), the speed of light (c=310⁸), and the universal gravitational constant (G=6.67410^-11). a radius of 2966.35m will be calculated
Comparing this to the actual radius of the sun (710⁵km) it is seen that the real radius is much larder than the Schwarzschild radius. This means that the Schwarzschild zone ends within the sun! (I.e the sun would have to be <3000m in order to be a black hole.