| 单词 | 星群 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔Perseid〕One of a shower of meteors that appears to originate in the vicinity of the constellation Perseus during the second week of August.英仙（座）流星，八月流星：在八月的第二周期间，出现而产生于英仙座附近的流星群的流星雨之一美国传统〔Rigel〕A bright double star in the constellation Orion.参宿七，猎户座β：猎户座星群中的一颗明亮的双星美国传统〔asterism〕Astronomy A cluster of stars smaller than a constellation.【天文学】 星群，星座：比星座小的一簇星星美国传统〔multiple star〕A group of three or more stars, usually with a common gravitational center, that appear as one to the unaided eye.聚星：看上去象是一颗星的由三个或更多颗星组成的星群，通常具有一个共同的重力中心美国传统〔radiant〕Astronomy The apparent celestial origin of a meteoric shower.【天文学】 流星群的辐射点：明显的流星雨太空光源美国传统〔supergalaxy〕A very large group of galaxies.超星系：一组巨大的星群美国传统〔superior conjunction〕The position of a celestial body when it is on the opposite side of the sun from Earth.上合：天体中一组星群的位置，从地球上看这座星群位于 太阳的相反方向美国传统 |
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