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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. 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. Optically it is a Ritchey–Chrétien design, and the main mirror uses low

  4. Earth tone - Wikipedia

    en.wikipedia.org/wiki/Earth_tone

    Overall, colors in earth tone are considered [weasel words] to be the colors of nature like sea, sky, land, and tree. Any color that is mixed with gray is considered [weasel words] an earth tone. Earth tone also includes any shade or tint color as well as brown, green, yellow, orange, or gray. For instance, earth tone colors are as follows: [10]

  5. 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.

  6. 5 Enchanting Antiques That Caught Our Eye at the Winter Show

    www.aol.com/5-enchanting-antiques-caught-eye...

    The Winter Show’s 70th edition—open now through February 2— features treasures ranging from quirky furniture to a Fabergé rarity.

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

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

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