Hubble constant

From Wiktionary, the free dictionary
Archived revision by 86.145.59.246 (talk) as of 00:34, 28 September 2019.
Jump to navigation Jump to search

English

Alternative forms

Etymology

After Edwin Powell Hubble, American astronomer

Proper noun

Hubble constant

  1. (astronomy) 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 gives the age of the universe

Translations