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    Yerkes Observatory

    Yerkes Observatory
    Yerkes Observatory
    The University of Chicago’s observatory at Williams Bay, Wisconsin, on the shores of Lake Geneva. It is home to the world's largest refractor, with an aperture of 40 inches (1.02 meters), opened in 1897, which is still used for research including adaptive optics studies. Other instruments include a 41-inch reflector, opened in 1967, and a 24-inch Boller & Chivens reflector. The observatory was funded in 1892 by the businessman Charles Tyson Yerkes (1837-1905) and founded in 1897 by George Ellery Hale.


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    External site
    Yerkes Observatory, University of Chicago



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