Evershed, John

Evershed, John

▪ British astronomer
born Feb. 26, 1864, Gomshall, Surrey, Eng.
died Nov. 17, 1956, Ewhurst, Surrey

      English astronomer who, in 1909, discovered the horizontal motion of gases outward from the centres of sunspots, a phenomenon sometimes called the Evershed effect.

      In 1906 Evershed became assistant director of the Kodaikānal and Madras observatories in India, later becoming director. On an expedition to Kashmir in 1915, he made the first measurements supporting Albert Einstein's prediction that the wavelength of light emitted by a massive body (in this case the Sun) should be increased by an amount proportional to the intensity of the local gravitational field. Evershed retired in 1923, returning to England; in 1925 he built his own solar observatory at Ewhurst. He went on six expeditions to observe total solar eclipses from Norway (1896), India (1898), Algeria (1900), Spain (1905), Australia (1922), and Yorkshire (1927).

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Universalium. 2010.

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  • Evershed — John Evershed (* 26. Februar 1864 in Gomshall, Surrey, England; † 17. November 1956 in Ewhurst, Surrey, England) war ein britischer Astronom. Er war der Erste, der die Radialbewegung der Sonnenflecken beobachtet hat, ein Phänomen, das als… …   Deutsch Wikipedia

  • John Evershed — (* 26. Februar 1864 in Gomshall, Surrey, England; † 17. November 1956 in Ewhurst, Surrey, England) war ein britischer Astronom. Er war der Erste, der die Radialbewegung der Sonnenflecken beobachtet hat, ein Phänomen, das als Evershed Effekt (auch …   Deutsch Wikipedia

  • John Evershed — (26 February 1864 ndash; 17 November 1956) was an English astronomer. He was the first to observe radial motions in sunspots, a phenomenon known as the Evershed effect.Evershed was born in Gomshall, Surrey, on February 26, 1864. He made the… …   Wikipedia

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