velocity–distance relation

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Edwin Powell Hubble (1889—1953) American astronomer

Hubble law

Hubble diagram


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The relationship between the recession velocity of an extragalactic object and its distance from the observer. In 1929 E. P. Hubble showed that for nearby galaxies this relationship is a straight line—the Hubble law—which is evidence that we live in an expanding homogeneous Universe. This relationship is predicted to deviate from a straight line for more distant galaxies (see Hubble Diagram).

Subjects: Astronomy and Astrophysics.

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