I'm researching FET for a seminar on critical analysis, and I came up with a question that (so far) I haven't seen addressed. I'm totally ok with the FET calculation of the size and distance of the Sun using trigonometry and assuming a flat surface instead of a round one. What I want to know is if (as physics can demonstrate through spectrographic analysis) the Sun is a giant sphere of hydrogen fusing into helium, 32 miles across, does its power output match the size and distance? I would imagine that measuring the solar radiation (light, heat, uv, etc.) would be unaffected by differences between fe/re models. I have no solid data, but considering the tremendous power output of thermonuclear weapon tests, which were miniscule compared to a 32-mile diameter sphere of continuously reacting fuel, 3000 miles seems an awfully close distance, especially if the "spotlight" model for the sunlight (as far as I understand) focuses all the sun's energy onto the flat earth disk. why are we not all dying of skin cancer and why are the oceans not boiling?
or does the Sun not run on hydrogen fusion?