How do we know which stars have the most heat?

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How do scientists or whoever calculates the heat in space know how much heat a specific star emits compared to others in its vicinity? Is it always the same way to calculate the heat?

In: Physics

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Anonymous 0 Comments

Color tells you how much energy *per unit area.* For total power, you need that plus the size of the star, or alternately its apparent brightness and the distance.

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