单词 | major planet |
释义 | > as lemmasmajor planet major planet n. Astronomy (a) = giant planet n. at giant n. and adj. Additions; (b) each of the larger bodies which orbit the sun (in order of increasing distance from the sun: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto). ΚΠ 1846 D. Lardner Pop. Lect. Sci. & Art I. 143 The planets..will naturally be classed in three distinct groups, the first of which we shall call the minor planets, the second the new planets, and the third the major planets. 1869 E. Dunkin Midnight Sky 278 It is very probable that Neptune is furnished with several moons, in like manner with the other major planets. 1902 G. F. Chambers Story Solar Syst. i. 10 The following is an enumeration of the major planets in the order of their distances, reckoning from the Sun outwards:– 1. Mercury. 2. Venus. 3. The Earth [etc.]. 1954 C. Payne-Gaposchkin Introd. Astron. viii. 177 The major planets (Jupiter, Saturn, Uranus, Neptune) are all large, of low density, and surrounded by huge atmospheres. 1991 C. A. Ronan Nat. Hist. Universe 40/2 The Sun's family comprises nine major planets and scores of moons. < as lemmas |
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