Oort Cloud

短语

奥尔特云

发音

/ˈɔːrt klaʊd/

词形变化

the Oort Cloud

别名

Oort cloud

释义与例句

name
  1. 1.

    The Solar System's Oort cloud, extending from 50,000 to 100,000 astronomical units (approximately 1 light year) from the sun; supposedly the source of most comets around the Solar System.

    奥尔特云

    天文

词源

Named after the Dutch astronomer Jan Hendrik Oort, who revived the Estonian astronomer Ernst Öpik’s idea from 1932 of a reservoir of long-period comets in the form of an orbiting cloud at the outermost edge of the Solar System in 1950 to resolve a paradox about the origin of comets.

来源：wiktionary