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red supergiant

   Also found in: Wikipedia 0.01 sec.
red supergiant
An extremely large red giant star with a minimum of 15 solar masses. The best known red supergiant is Betelgeuse, with a luminosity about 10,000 times that of the Sun. When a supergiant collapses into a supernova, it may result in either a neutron star or a black hole.


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The star, a red supergiant, has a radius roughly the distance between the sun and Jupiter.
Red supergiant stars are suspected to explode into type-II supernovas, cosmic explosions due to a massive star's internal collapse.
Antares is a red supergiant, spectral type Ml, located 550 light years away and about 700 times the diameter of the Sun.
 
 
 
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