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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.
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 ...
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.
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
NGC 2264 is the designation number of the New General Catalogue that identifies two astronomical objects as a single object: the Cone Nebula, and the Christmas Tree Cluster. Two other objects are within this designation but not officially included, the Snowflake Cluster , [ 3 ] [ 4 ] and the Fox Fur Nebula . [ 5 ]
Well-dressed children watch toys in the shop window of a department store displaying Christmas decorations on December 11, 1946. AFP - Getty Images F.W. Woolworth Company: 1947
On Christmas Eve 1832, a young Victoria wrote about her delight at having a tree, hung with lights, ornaments, and presents placed round it. [6] In the 1840s, after a picture of Victoria's Christmas tree was shown in a London newspaper decorated with glass ornaments and baubles from her husband Prince Albert 's native Germany, Lauscha began ...
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