V2EX star cluster

Star Cluster

释义 Definition

星团:由引力束缚在一起、在空间中相对密集分布的一群恒星。常见类型包括疏散星团(open cluster)球状星团(globular cluster)。(也可泛指“成群的星星”,但最常用的是天文学意义。)

发音 Pronunciation (IPA)

/str klstr/

例句 Examples

I saw a star cluster through my telescope last night.
昨晚我用望远镜看到了一个星团。

Because a star cluster’s stars often formed at roughly the same time, astronomers use it to study how stars evolve.
由于星团中的恒星往往在大致相同的时间形成,天文学家会利用星团来研究恒星如何演化。

词源 Etymology

star(星、恒星)+ cluster(簇、群、聚集)。cluster源自古英语 clyster,本义与“聚成一团/一簇”有关;在科学语境里逐渐固定为“成群聚集的事物”,因此 star cluster 直译即“恒星的聚集体”。

相关词 Related Words

文学与作品 Literary Works

  • Cosmos(Carl Sagan):科普叙述中多次提到 star clusters 等天体结构。
  • NightWatch: A Practical Guide to Viewing the Universe(Terence Dickinson):观测指南中常以 star cluster 作为深空天体观测对象之一。
  • Turn Left at Orion(Guy Consolmagno & Dan M. Davis):面向业余观测者,含大量 star clusters 的寻星与观测条目。
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