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The observatory was operated by the University of Chicago Department of Astronomy and Astrophysics [2] [3] from its founding in 1897 until 2018. Ownership was transferred to the non-profit Yerkes Future Foundation (YFF) in May 2020, which began millions of dollars of restoration and renovation of the historic building and grounds.
Opened in 1977, the Doane Observatory is the largest aperture telescope available to the public in the Chicago area. With its 20-inch (510 mm; 51 cm) diameter mirror, the Doane can gather over 5,000 times more light than an unaided human eye, allowing guests to see celestial objects like the Moon, planets, stars, and galaxies that are trillions ...
George Observatory 1989 Brazos Bend State Park, near Houston, Texas, US Giant Meterwave Radio Telescope (GMRT) 1995 Pune, Maharashtra, India Gifford Observatory: 1912 Wellington, New Zealand Girawali Observatory: 2006 Pune, Maharashtra, India Glen D. Riley Observatory: 1973 Naperville, Illinois, US Godlee Observatory: 1902 Manchester, England, UK
George Ellery Hale (June 29, 1868 – February 21, 1938) was an American astrophysicist, best known for his discovery of magnetic fields in sunspots, and as the leader or key figure in the planning or construction of several world-leading telescopes; namely, the 40-inch refracting telescope at Yerkes Observatory, 60-inch Hale reflecting telescope at Mount Wilson Observatory, 100-inch Hooker ...
When Yerkes Observatory was established in 1897, the Kenwood instruments were donated to the University of Chicago and moved to the Yerkes facility in Williams Bay, Wisconsin. The 12-inch telescope was one of the instruments besides the large 40-inch aperture refractor for the start of Yerkes observatory in the 1890s. [3]
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During his time at Yerkes Observatory, American solar astronomer George Ellery Hale developed a horizontal telescope for observation of the Sun. This instrument used a 30-inch (76 cm) [4] diameter coelostat to track the Sun and reflect the illumination onto a second mirror, which directed the light horizontally onto a concave objective mirror.
With George Swenson's arrival, Illinois began a program of radio astronomy resulting in the Vermillion River Radio Observatory that opened in 1962. Prairie Observatory was an optical observatory consisting of a 40-inch telescope and was completed in 1967. By the time of Dr. McVittie's retirement in 1971, the one-astronomer department had ...