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27 March, 04:51

How does the sun compare to other stars on the HR diagram in terms of brightness and temperature

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  1. 27 March, 05:21
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    Weighted by the stellar luminosity function, the sun is somewhat above the average temperature and very much above the average luminosity. Only 4% of main sequence stars are significantly brighter and hotter than the sun. About 6% of main sequence stars are about the same brightness and temperature. About 90% of main sequence stars are significantly dimmer and cooler than the sun. However, most of our galaxy's light (about 88%) comes from spectral type B stars, even though only one star in each thousand stars belongs to this type.
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