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The meaning of SUPERGIANT is something that is extremely large; especially : a star of very great intrinsic luminosity and enormous size.
A star that is larger, brighter, and more massive than a giant star, being thousands of times brighter than the Sun and having a relatively short lifespan—only about 10 to 50 million years as opposed to around 5 billion years for the Sun. Supergiants, such as Betelgeuse and Rigel in Orion, are only found in young cosmic structures such as the ...
SUPERGIANT meaning: 1. an extremely large star that is between 10,000 and 100,000 times brighter than the sun 2. an…. Learn more.
Supergiant star, any star of very great intrinsic luminosity and relatively enormous size, typically several magnitudes brighter than a giant star and several times greater in diameter. The distinctions between giants (see also giant star), supergiants, and other classes are made in practice by.
Supergiants are among the most massive and most luminous stars. Supergiant stars occupy the top region of the Hertzsprung–Russell diagram with absolute visual magnitudes between about −3 and −8. The temperature range of supergiant stars spans from about 3,400 K to over 20,000 K.
What does the word supergiant mean? There are eight meanings listed in OED's entry for the word supergiant . See ‘Meaning & use’ for definitions, usage, and quotation evidence.
Supergiant definition: Any of various very massive, large, and bright stars, such as Betelgeuse or Rigel, having a luminosity that is thousands of times greater than that of the sun. When a supergiant collapses into a supernova, it may result in either a neutron star or a black hole.