OK, I couldn't resist trying to calculate this:
Quote:
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Originally Posted by Wikipedia;
The core of the Sun is considered to extend from the center to about 0.2 to 0.25 solar radii. It has a density of up to 150 g/cm3
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Quote:
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Originally Posted by Wikipedia;
Power density is about 194 µW/kg of matter,[51] though since most fusion occurs in the relatively small core the plasma power density there is about 150 times bigger.
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So, the power density in the core must be 194 µW/kg * 150 = 29100µW/kg = 0.0291W/kg.
Quote:
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Originally Posted by Wikipedia;
Assuming core density 150 times higher than average, this corresponds to a surprisingly low rate of energy production in the Sun's core—about 0.272 W/m3
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But, the core density is 150 g/cm3, so 1 cubic metre = 150,000kg.
This gives 0.0291W/kg * 150,000kg = 4365W/m3.
Sounds more plausible, but is it correct? I can't see where they got 0.272 W/m3 from?