description Yerkes Observatory Overview
The Yerkes Observatory, located in Williams Bay, Wisconsin, is a historically significant ground-based observatory built in 1897. It houses the Davies Refractor, once the world’s largest refracting telescope. Operated by the University of Chicago, it played a crucial role in early astronomical research and continues to be studied for its engineering and optical design. The observatory remains valuable for astronomers and historians interested in late nineteenth-century observational astronomy.
help Yerkes Observatory FAQ
What is the Yerkes Observatory famous for?
Completed in 1897 in Williams Bay, Wisconsin, Yerkes Observatory is famous for housing the world's largest refracting telescope. The 40-inch diameter lens of this telescope remains the largest of its kind ever used for astronomical observation.
Who operated the Yerkes Observatory?
The facility was founded and operated by the University of Chicago for over a century. Notable astronomers like George Ellery Hale, who pushed for its construction, worked there to advance the field of astrophysics.
Can the public visit Yerkes Observatory today?
Yes, after a period of reduced operations, the observatory has been reopened to the public by the Yerkes Future Foundation. They now offer guided tours of the historic building, the 40-inch refractor, and the scenic grounds.
Why was the Yerkes Observatory built in Wisconsin and not Chicago?
The University of Chicago needed a location far enough away from the city's light pollution and smoke, but still accessible by train. Williams Bay, Wisconsin, provided the dark skies required for the massive refractor and was easily reachable from the university campus.
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