Hubble Constant Definition
noun
A ratio expressing the rate at which the universe is expanding, the so-called constant in Hubble's law, equal to the velocity of a receding galaxy divided by its distance from the earth: symbol, H0
Webster's New World
Synonyms:
- Hubble parameter
- Hubble's parameter
- Hubble's constant
Origin of Hubble Constant
After Edwin Powell Hubble, American astronomer
From Wiktionary
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