(cosmology) the ratio of the speed of recession of a galaxy (due to the expansion of the universe) to its distance from the observer; the Hubble constant is not actually a constant, but is regarded as measuring the expansion rate today
Type | Words |
---|---|
Synonyms | hubble's parameter, hubble constant, hubble parameter |
Type of | constant |
Sign up for free and be the first to get notified about new posts.