Quote:
Originally Posted by bojan
Everything is right here...
This is simply how much heat manages to escape from the interior of the Sun. However, it does not tell how much heat energy is still trapped inside... and this is huge amount.
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Yes good point. There is energy trapped inside to counteract a gravitational collapse.
And there are also neutrinos which accounts for quite a bit of the sun's energy output. These are not part of the radiation flux as expressed by the solar constant.
But then the whole thing is simply a mix of concepts, because we cannot use the solar constant alone to calculate a W/m3 for the Sun, it is meaningless because of the above reasons.
The correct calculation must be based on the actual energy production in the core rather than only on the flux we can measure outside. The calculation I did earlier based on the Wikipedia numbers then seem methodologically correct, although I'm not sure if the actual numbers involved were OK.