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main sequence |
Also found in: Wikipedia, Hutchinson | 0.10 sec. |
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main sequence [′mān ′sē·kwəns] (astronomy) The band in the spectrum luminosity diagram which has the great majority of stars; their energy derives from core burning of hydrogen into helium. 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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| This would make Beta Pictoris far too young to qualify as a main-sequence star, burning hydrogen at its core. Over billions of years, enough of this material could accumulate in a main-sequence star to leave a core of strange matter when the star dies. For nearly a decade, Beta Pictoris has reigned as the only mature, main-sequence star with an encircling disk of dust - perhaps much like the disk from which our solar system evolved 4. |
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