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It's luminosity is 90,000 - 150,000 times that of the Sun, so it's safe to assume that the total amount of infrared radiation will also be more.

Since its temperature is lower than that of the Sun, the percentage of infrared radiation should also be higher.

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7y ago
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11y ago

The outer layers of Betelgeuse ... the visible part ... are cooler and redder
than the sun, so its relative infrared output is greater than the sun's is.

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Q: Does Betelgeuse emit more or less infrared radiation than the sun?
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