| 单词 | planetary system |
| 释义 | > as lemmasplanetary system planetary system n. [compare French système planétaire (1740)] a system comprising a star and its planets; the solar system; (also figurative) a system of correlated parts. ΘΚΠ the world > the universe > planet > [noun] > planetary system planetary system1699 chorus1701 planetarium1835 1699 Philos. Trans. (Royal Soc.) 21 337 Tho' it be impossible for us ever to see those Planets, by reason of their vast Distance, yet from the analogy that is between the Sun and Stars, we may judge of the planetary Systems about them, and of the Planets themselves too, which probably are like the planetary Bodies about the Sun. 1730 Philos. Trans. 1729–30 (Royal Soc.) 36 159 This Revolution [of Venus] he makes greatly different from those of the Earth and Mars (the two Bodies next in order of the Planetary System) both in the Position of the Axis and the Time of the Period. 1816 J. Playfair Outl. Nat. Philos. (ed. 2) II. ii. iv. 289 They proved, that the planetary system is stable. 1869 tr. F. A. Pouchet Universe (1871) 511 All the stars are, according to Kepler, only suns like ours, each of which has its planetary system. 1996 Jrnl. Brit. Astron. Assoc. 106 59/3 The discovery opens up a whole new area of research in astronomy—the study of comparative planetary systems. < as lemmas |
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