Edwin Powell Hubble
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Hubble, Edwin Powell
Born Nov. 20, 1889, in Marsh-field, Mo.; died Sept. 28, 1953, in San Marino, Calif. American astronomer. Member of the National Academy of Sciences in Washington D.C. (from 1927).
From 1914 to 1917, Hubble worked at the Yerkes Observatory, and from 1919 at the Mount Wilson Observatory. His main works were devoted to the study of galaxies. In 1922, Hubble proposed a classification of observable nebulas into extragalactic nebulas (galaxies) and galactic nebulas (gas-dust nebulas). In the period 1924–26, he was able to detect on photographs the stars of which the galaxies closest to us consist and thus prove that they are stellar systems similar to our galaxy. In 1929, Hubble established the relationship between the red shift of galaxies and the distance to them (Hubble’s law).
WORKS“A General Study of Diffuse Galactic Nebulae.” The Astrophysical Journal, 1922, vol. 56, no. 3.
The Observational Approach to Cosmology. Oxford, 1937.
The Realm of the Nebulae. New Haven-London, 1936.