Yerkes Observatory

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Yerkes Observatory Soundex Code Y622

Wikipedia page about the Yerkes Observatory

The Yerkes Observatory is an astronomical observatory operated by the University of Chicago in Williams Bay, Wisconsin. The observatory, which calls itself "the birthplace of modern astrophysics," was founded in 1897 by George Ellery Hale and financed by Charles Tyson Yerkes. It represented a shift in the thinking about observatories, from their being mere housing for telescopes and observers, to the modern concept of observation equipment integrated with laboratory space for physics and chemistry.

The observatory has the world's largest refracting telescope successfully used for astronomy and a collection of over 170,000 photographic plates.

Notable astronomers who have conducted research at Yerkes include Edwin Hubble (who did his graduate work at Yerkes and for whom the Hubble Space Telescope was named), Subrahmanyan Chandrasekhar (for whom the Chandra X-ray Observatory was named), and the well-known 20th Century popularizer of astronomy Carl Sagan.