Yerkes Observatory
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The Yerkes Observatory is located in Williams Bay, Wisconsin, United States. It was operated by the University of Chicago Department of Astronomy and Astrophysics from its founding in 1897 until 2018.
Yerkesobservatoryfromair
1897 photo of the 40 in (100 cm) refractor at the Yerkes Observatory.
Telescope controls of the 40 in (100 cm) refractor
Alvan Graham Clark polishes the big Yerkes objective lens in 1896
Williams Bay, Wisconsin
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Williams Bay is a village in Walworth County, Wisconsin, United States. It is one of three municipalities on Geneva Lake. The population was 2,953 at the 2020 census. On June 22, 2024 the town was hit
Yerkes Observatory
…The Yerkes Observatory ( YUR-keez) is located in Williams Bay, Wisconsin, United States. It was operated by the University of Chicago Department of Astronomy and Astrophysics from its founding in 1897 until 2018. Ownership…
Skyline over Geneva Lake
View of Williams Bay from Cedar Point Park
Yerkes Observatory