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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. File:Yerkes Observatory, Williams Bay Wisconsin, c. 1900.jpg

    en.wikipedia.org/wiki/File:Yerkes_Observatory...

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more

  4. Frank Elmore Ross - Wikipedia

    en.wikipedia.org/wiki/Frank_Elmore_Ross

    At Yerkes Observatory he was the successor to the late E. E. Barnard, inheriting Barnard's collection of photographic plates. Ross decided to repeat the same series of images and compare the results with a blink comparator. In doing so, he discovered 379 new variable stars and over 1000 stars of high proper motion.

  5. 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* Yerkes Observatory [6] 102 cm (40") achromat: Williams Bay, Wisconsin, USA: 1897 James Lick telescope, Lick Observatory: 91 cm (36") achromat: Mount Hamilton, California, USA: 1888 Crossley Reflector [13] 91.4 cm(36") reflector – glass: Lick Observatory, California ...

  6. List of largest optical refracting telescopes - Wikipedia

    en.wikipedia.org/wiki/List_of_largest_optical...

    The Swedish 1-m Solar Telescope, with a lens diameter of 43 inches, is technically the largest, with 39 inches clear for the aperture.The second largest refracting telescope in the world is the Yerkes Observatory 40 inch (102 cm) refractor, used for astronomical and scientific observation for over a century.

  7. The 26 Best Christmas Tree Toppers We Found Online This Year

    www.aol.com/lifestyle/26-best-christmas-tree...

    26 Festive Christmas Tree Topper Ideas to Try Getty Images ... pick a different celestial body to hang atop your tree. This mirrored crescent moon is a great choice for the holiday decorator who ...