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?
Homework Answers
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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Proxima Centauri, the nearest start to the Sun, is about 4 light
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within light-years () of the Sun? Would that number be
about the same or much different if Earth orbited another star in
this figure? (The field of view is wide in the
figure.)
A. There are no stars within of the Sun. The number
would be much differen
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. Stars within of the Sun are confined to about two
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C. Stars within of the Sun are confined...
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