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supergiant star |
Also found in: Wikipedia, Hutchinson | 0.53 sec. |
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supergiant star: see red giant red giant, star that is relatively cool but very luminous because of its great size. All normal stars are expected to pass eventually through a red-giant phase as a consequence of stellar evolution . ..... Click the link for more information. . supergiant starStar of very great natural luminosity and relatively enormous size, typically several magnitudes brighter and several times larger than a giant star. Like other classes of stars, they are distinguished in practice by examination of certain lines in their spectra (see spectroscopy). A supergiant may have a diameter several hundred times that of the Sun and a luminosity nearly a million times as great. Supergiants live probably only a few million years, an extremely short life for a star. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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It consists of a blue supergiant star and a cool star. Supergiant stars had to go through long cycles of collapse and re-expansion to create heavier elements, out of which humans and our planet are composed. The images reveal that the red supergiant star was about 8 times as massive as the sun, which is near the low end of what theory predicts for the mass of stars that can flame out in a supernova. |
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