单词 | post-main sequence |
释义 | > as lemmaspost-main sequence post-main sequence adj. Brit. , U.S. Astronomy designating a star which is too old to lie within the main sequence on a Hertzsprung-Russell diagram, i.e. one which no longer has hydrogen fusion at its core and is relatively cool or dim, such as red giant; cf. main adj.2ΚΠ 1964 Science Nov. 1032/2 R. Kippenhahn surveys progress on post-main-sequence models with inhomogenous composition. 1999 Science 10 Sept. 1716 μ-Cephei is an evolved (post-main sequence) M-type supergiant star. < as lemmas |
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