Dictionary - Definition of Hubble's law


Part of Speech	Definition
Noun	1. (astronomy) the generalization that the speed of recession of distant galaxies (the red shift) is proportional to their distance from the observer.[Wordnet].
Source: WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.		Top

Common Expressions: Hubble's law

Expressions	Definition
Hubble's law	(astronomy) the generalization that the speed of recession of distant galaxies (the red shift) is proportional to their distance from the observer. Source: Wordnet 3.0 Copyright © 2006 by Princeton University. All rights reserved.
Source: compiled by the editor from various references; see credits.		Top

Expressions	Domain	Definition
Hubble's law	Physics	1: (E.P. Hubble; 1925) - A relationship discovered between distance and radial velocity. The further away a galaxy is from us, the faster it is receding from us. The constant of proportionality is the Hubble constant, H_0. The cause is interpreted as the expansion of space-time itself. (references)
		2: A relationship discovered between distance and radial velocity. The further away a galaxy is from us, the faster it is receding from us. The constant of proportionality is the Hubble constant, H_0. The cause is interpreted as the expansion of spacetime itself. (E. P. Hubble; 1925). (references)
Hubble's law (E.P. Hubble; 1925)	Aerospace	A relationship between a galaxy's distance from us and its velocity through space. The farther away a galaxy is from us, the faster it is receding from us. The constant of proportionality is the Hubble constant, H, named after Edwin P. Hubble who discovered the relationship. Hubble's Law is interpreted as evidence that the Universe is expanding. (references)
Source: compiled by the editor from various references; see credits.			Top