V2EX asterism

Asterism

释义 Definition

asterism(名词):星群/星列;指夜空中由几颗较亮的恒星组成、容易辨认的图形,但不一定是官方划定的星座(constellation)的一部分或整体。常见例子如北斗七星(Big Dipper)、冬季大三角(Winter Triangle)。在植物学中也可指“星状结构”(较少见)。

发音 Pronunciation

/s.t.r.zm/

例句 Examples

The Big Dipper is a famous asterism.
北斗七星是一个著名的星群。

Astronomers use well-known asterisms to help people locate constellations and navigate the night sky.
天文学家会用一些知名的星群来帮助人们定位星座并辨认夜空方位。

词源 Etymology

来自希腊语 aster(“星星”)及其相关构词,后经拉丁语影响进入英语;词根含义与“星、星形标记”有关,因此 asterism 字面上可理解为“由星构成的形状/标识”。

相关词 Related Words

文学作品中的用例 Notable Literary Works

  • Herman Melville, Moby-Dick(书中多处涉及航海观星与星象意象,使用到星群/星座等天文词汇体系)
  • Thomas Hardy, Two on a Tower(以天文学与观测为主题的小说,相关章节常出现星座与夜空图景描写,语境中可见 asterism 等术语)
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