Oort Cloud

专有名词
中文释义

英文释义

专有名词
  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.

词形变化

the Oort Cloud canonical Oort cloud alternative

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.
0 次浏览 数据来源: Wiktionary