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单词 asterium
释义

asterium

英汉-汉英词典
n. 假设存在于最热的星球中的一种元素
词组 | 习惯用语
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  • asteroid n. [天文]小行星;海盘车;小游星 adj. 星状的
  • astronomy n. 天文学
  • bacterium n. 细菌
  • asterisk n. 星号 vt. 注上星号;用星号标出
  • terrarium n. 陆地动物饲养所,玻璃容器

网络短语:
asterium 假设存在于最热的星球中的一元素
Gymnocalycium asterium 凤头
英语百科

Asterism (astronomy)

This picture of Brocchi's Cluster (the Coathanger), an  asterism in the constellation Vulpecula, was taken through binoculars.
The Big Dipper asterism

In astronomy, an asterism is a pattern of stars recognized in the Earth's night sky. It may be part of an official constellation or it may be composed of stars from more than one constellation.

Colloquial usage does not draw a sharp distinction between "constellation" in the sense of an asterism (pattern of stars) and "constellation" in the sense of an area of the sky surrounding an asterism. The modern system of constellations used in astronomy employs the latter concept. For example, the asterism known as the Big Dipper comprises the seven brightest stars in the IAU constellation that is called Ursa Major.

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