| 单词 | galactic system |
| 释义 | > as lemmasgalactic system galactic system n. (a) the system of galactic coordinates; (b) the galaxy that contains the solar system and whose plane of maximum star density gives rise to the observed Milky Way. ΚΠ 1854 E. Willard Astronography xxiv. 262 The fourth Spherical System..may be called the Galactic System, from its Great Circle, the Galaxy or Milky Way. 1869 Proc. Royal Soc. 18 170 We seem compelled to look upon the stars which exhibit such community of motion as forming a distinct system, the members of which are associated indeed with the galactic system, but are much more intimately related to each other. 1936 E. Hubble Realm of Nebulæ vi. 125 The galactic system is a member of a typical, small group of nebulæ which is isolated in the general field. 1992 S. P. Maran Astron. & Astrophysics Encycl. 132/2 In the galactic system..the primary circle is the plane of our galaxy and the reference point is in the direction of the galactic center. < as lemmas |
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