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Hubble constant

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1. n. (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 Source: wordnet

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constant expansion hubble actually cosmology distance galaxy measuring observer rate ratio recession regarded speed today universe

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Hubble law Hubble parameter Hubble's constant Hubble's law Hubble's parameter hubble-bubble hubbling hubbly-bubbly

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