Astronomy. A star which lies just below the main sequence on the Hertzsprung–Russell diagram, being less luminous than main sequence stars of the…
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| 释义 | the world > the universe > star > kind of star > small star > [noun] > subdwarf (1) subdwarf1939 Astronomy. A star which lies just below the main sequence on the Hertzsprung–Russell diagram, being less luminous than main sequence stars of the… |
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