Hubble constant

短语

na. 【天】哈勃常数 [网络] 哈伯常数；哈柏常数；哈勃常量

别名

Hubble's constant

释义与例句

name
  1. 1.

    A number that expresses the rate of expansion of the universe; the velocity at which a distant object is receding from the Earth divided by its distance; its reciprocal determines the age of the universe.

    哈勃定律

    哈勃常数

    天文

词源

After Edwin Powell Hubble, American astronomer

来源：wiktionary