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Proxima Centauri, the nearest start to the Sun, is about 4 light years from Earth, and...

Proxima Centauri, the nearest start to the Sun, is about 4 light years from Earth, and Antares is about 520 light years from Earth. Antares is a very bright star easily seen with the naked eye but Proxima Centauri is so dim that a small telescope is needed to see it. What can you say about the relative luminosities of Antares and Proxima Centauri?

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Antares has a spectral type of M1Ib and luminosity 65,000 times the Sun whereas proxima centauri has a very low average luminosity 0.0017 times the sun  , Proxima is a flare star that undergoes random dramatic increases in brightness because of magnetic activity.

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