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Definition of Hubble constant
1. Noun. (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.
Category relationships: Cosmogeny, Cosmogony, Cosmology
Generic synonyms: Constant
Definition of Hubble constant
1. Noun. (astronomy) a number the 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 ¹
¹ Source: wiktionary.com
Lexicographical Neighbors of Hubble Constant
Literary usage of Hubble constant
Below you will find example usage of this term as found in modern and/or classical literature:
1. The Origin and Its Meaning: On the Origin of the Universe and Its Mechanics by Roger Ellman (2004)
"The very concept of the "Hubble constant" is only valid in terms of the Hubble
... However, the Hubble - Einstein cosmology and its "Hubble constant" ..."
2. First Workshop on Grand Unification: New England Center, University of New by Paul H. Frampton, Sheldon L. Glashow, Asim Yildiz (1980)
"... h is the Hubble constant in units of km/sec/H . (h = 75 is currently pc favored) .
For 50 < h < 100, the sum of the neutrino masses required to give p ..."
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