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单词 post-main sequence
释义

> as lemmas

post-main sequence
post-main sequence adj.
Brit. /ˌpəʊs(t)meɪn ˈsiːkwəns/
,
U.S. /ˌpoʊs(t)ˌmeɪn ˈsikwəns/
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.2
ΚΠ
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.
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更新时间:2025/3/22 11:23:40