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Using the Hertzsprung-Russell diagram, a 2000 Kelvin star would be a very cool red star, a lot dimmer than a 8000 Kelvin white star. At a set distance, the brightness (absolute magnitude) of the red 2000 Kelvin star would be around +15 to +17, while the hotter 8000 Kelvin Star may be around +2 to +3. This 13 orders of magnitude difference would equate to hot white 8000K star being around 60,000 times as bright.

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14y ago

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