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  2. Yerkes Observatory - Wikipedia

    en.wikipedia.org/wiki/Yerkes_Observatory

    Yerkes Observatory (/ ˈ j ɜːr k iː z / ⓘ YUR-keez) is an astronomical observatory located in Williams Bay, Wisconsin, United States. The observatory was operated by the University of Chicago Department of Astronomy and Astrophysics [ 2 ] [ 3 ] from its founding in 1897 until 2018.

  3. List of the largest optical telescopes in North America

    en.wikipedia.org/wiki/List_of_the_largest...

    Name/Observatory Aperture cm (in) Type Location then (Original Site) Extant* Harvard Great Refractor, Harvard College Observatory [15] 38 cm (15") achromat: Cambridge, Massachusetts, USA: 1847 Merz und Mahler (Mitchell cupola), Cincinnati Observatory: 28 cm (11") achromat: Cincinnati, Ohio, USA: 1843 West Point Observatory 9.75 inch Fitz equatorial

  4. Yerkes 41-inch reflector - Wikipedia

    en.wikipedia.org/wiki/Yerkes_41-inch_reflector

    Yerkes 41-inch reflector is a 40-inch aperture (101.6 cm) reflecting telescope at the Yerkes Observatory, that was completed in 1968. It is known as the 41 inch to avoid confusion with a 40 inch refractor at the observatory.

  5. List of astronomical observatories - Wikipedia

    en.wikipedia.org/wiki/List_of_astronomical...

    Educational observatory This is a partial list of astronomical observatories ordered by name, along with initial dates of operation (where an accurate date is available) and location. The list also includes a final year of operation for many observatories that are no longer in operation.

  6. Halley's Comet - Wikipedia

    en.wikipedia.org/wiki/Halley's_Comet

    A photograph of Halley's Comet taken at Yerkes Observatory on 29 May 1910 The 1910 approach, which came into naked-eye view around 10 April [ 81 ] and came to perihelion on 20 April, [ 81 ] was notable for several reasons: it was the first approach of which photographs exist, and the first for which spectroscopic data were obtained. [ 72 ]

  7. Yerkes - Wikipedia

    en.wikipedia.org/wiki/Yerkes

    Yerkes Observatory, an astronomical observatory of the University of Chicago Yerkes luminosity classification of stars; Yerkes scheme of galaxy morphological classification; Yerkes National Primate Research Center, one of eight national primate research centers funded by the National Institutes of Health, located in Atlanta, Georgia at Emory ...

  8. I spent 48 hours in the 'top city to visit' in 2025. It was ...

    www.aol.com/news/spent-48-hours-top-city...

    Travel site Lonely Planet named Toulouse the best city to visit in 2025, but I found the French city felt like an underwhelming college town. I spent 48 hours in the 'top city to visit' in 2025.

  9. Francis G. Pease - Wikipedia

    en.wikipedia.org/wiki/Francis_G._Pease

    Portrait of Francis G. Pease, 1930ca. Francis Gladheim Pease (January 14, 1881 – February 7, 1938) was an American astronomer.. He joined the Yerkes Observatory in Wisconsin, where he was an observer and an optician.