Assuming the sun to have a spherical outer surface of radius

Last updated: 6/27/2023

Assuming the sun to have a spherical outer surface of radius r radiating like a black body at temperature t C the power received by a unit surface normal to the incident rays at a distance R from the center of the sun is Salan Constar 4 r t R 16 r ot 1 2 r t 273 4 R 3 R A black body is at 727 C It emits energy at a rate which is proprotional to r t 273 4 R S Ts Rs R