| 单词 |
spectroscopic binary star |
| 释义 |
spectroscopic binary star spectroscopic binary star[¦spek·trə¦skäp·ik ′bī‚ner·ē ′stär] (astronomy) A binary star that may be distinguished from a single star only by noting the Doppler shift of the spectral lines of one or both stars as they revolve about their common center of mass. |
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