Yerkes Observatory

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Yerkes Observatory,

astronomical observatoryobservatory,
scientific facility especially equipped to detect and record naturally occurring scientific phenomena. Although geological and meteorological observatories exist, the term is generally applied to astronomical observatories.
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 located in Williams Bay, Wis., on the shore of Lake Geneva. It was founded in 1892 with funds provided by Charles T. YerkesYerkes, Charles Tyson
, 1837–1905, American financier, b. Philadelphia. He began his business career as a clerk in a Philadelphia grain commission house. He became a broker in 1858 and prospered, but in 1871 he was convicted of misappropriating city funds and was
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 and its first director was George E. HaleHale, George Ellery,
1868–1938, American astronomer, b. Chicago, grad. Massachusetts Institute of Technology, 1890. He founded and directed three great observatories (Yerkes, Mt.
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. The observatory is administered by the Univ. of Chicago. The principal instrument is a 40-in. refracting telescopetelescope,
traditionally, a system of lenses, mirrors, or both, used to gather light from a distant object and form an image of it. Traditional optical telescopes, which are the subject of this article, also are used to magnify objects on earth and in astronomy; other types of
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, completed in 1897, the largest of its type in the world; its size is very near the practical limit for a refractor because of distortions caused by the weight of the lens itself. Other equipment includes a 41-in. and two 24-in. reflecting telescopes and a number of specialized instruments. Principal programs include astrometry, and studies of comets, galaxies, and the interstellar medium.
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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Yerkes Observatory


a scientific institution of the Uni-versity of Chicago (USA). It was organized in 1892–97, 22 kmfrom Chicago. Its instruments include a 102-cm (40-in.) refrac-tor (the largest in the world, constructed by A. G. Clark andpaid for by C. Yerkes), a 30-cm (12-in.) double refractor, afour-camera astrograph (largest objectives, 25 and 16 cm) witha 13-cm (5-in.) visual refractor, 102-cm (40-in.) and 60-cm(24-in.) reflectors, a Schmidt camera, and a 15-cm (6-in.) comet-finder. Work is conducted at the observatory on solar research, the determination of stellar parallaxes and radial velocities, thestudy of double stars, stellar polarization, stellar photometry, and the photographing of stars and planets. Yerkes Observatoryissues Publications (since 1900).

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Yerkes Observatory was established in 1897 in the village of Williams Bay on the north side of Geneva Lake, Wisconsin.
Take the opportunity to see the largest lens-type telescope in the world, and the birthplace of modern astrophysics, at Yerkes Observatory or see the area from up above via Lake Geneva Canopy Tours (
For example, Charles Yerkes--notorious for monopolizing streetcars in Chicago by means both fair and foul--helped finance the Yerkes Observatory in Wisconsin to signal his fundamental beneficence and to rehabilitate himself in the public eye.
William Albert Hiltner born; Director of the Yerkes Observatory; Director of the University of Michigan's observatory; discovered the interstellar polarisation of starlight.
George van Biesbroek of the Yerkes Observatory was set up.
Less than two hours from Chicago or Milwaukee is the ( Yerkes Observatory in Williams Bay, Wis.
The Wednesday afternoon session at the Watkins Institute attracted a diverse group of speakers and an appreciative audience who learned of Barnard's early life in Nashville, his research at Lick Observatory in California, and his long career with Yerkes Observatory in Wisconsin Mary Ross Calvert, Barnard's niece and long-time secretary, provided a personal view of her uncle's career at Yerkes, while noted astronomers Robert G.
Fowler and had the epic battle with another renowned astrophysicist Sir Arthur Stanley Eddington on 11 January 1935 at Royal Astronomical Society - RAS which probably resulted in Chandra shifting to Yerkes Observatory, University of Chicago in January 1937.
Reviewed by Kyle Cudworth, Professor of Astronomy at the University of Chicago and Director of Yerkes Observatory, Williams Bay, WI 53191.
After researching at and directing the Yerkes and McDonald Observatories in the period 1951-1957, Stromgren formally left Danish astronomy in 1957 and moved with his family from Yerkes Observatory in Williams Bay, Wisconsin, to the Institute of Advanced Study (IAS) at Princeton, New Jersey.
In 1945 Herzberg returned to his youthful interest in astrophysics when he accepted a position at the Yerkes Observatory of the University of Chicago at Williams Bay.