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  2. List of the largest optical telescopes in North America

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

    Hooker Telescope Mount Wilson Obs. 100 inch 254 cm 1917 USA: McDonald Obs. 82 inch i.e. Otto Struve Telescope: 82 inch 208 cm 1939 USA: David Dunlap Observatory: 74 inch 188 cm 1935 Canada: Plaskett telescope Dominion Astrophysical Obs. 72 inch 182 cm 1918 Canada: 69-inch Perkins Telescope [10] Perkins Observatory: 69 inch 175 cm: 1931–1964 USA

  3. List of largest optical telescopes historically - Wikipedia

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

    Largest Visible-light space based telescope: Low Earth orbit NASA+ ESA: 1990 BTA-6: 6 m: 238" glass mirror reflector: World's largest 1976: Zelenchukskaya, Caucasus: 1976 McMath-Pierce Solar Telescope: 1.61 m: 63" glass mirror reflector: Largest solar telescope: Kitt Peak National Obs., USA: 1962 Hale Telescope (200 inch) 5.08 m: 200" glass ...

  4. List of largest optical reflecting telescopes - Wikipedia

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

    Largest does not always equate to being the best telescopes, and overall light gathering power of the optical system can be a poor measure of a telescope's performance. Space-based telescopes , such as the Hubble Space Telescope , take advantage of being above the Earth's atmosphere to reach higher resolution and greater light gathering through ...

  5. List of large optical telescopes - Wikipedia

    en.wikipedia.org/wiki/List_of_large_optical...

    This is a list of large optical telescopes. For telescopes larger than 3 meters in aperture see List of largest optical reflecting telescopes . This list combines large or expensive reflecting telescopes from any era, as what constitutes famous reflector has changed over time.

  6. Mount Wilson Observatory - Wikipedia

    en.wikipedia.org/wiki/Mount_Wilson_Observatory

    The observatory contains two historically important telescopes: the 100-inch (2.5 m) Hooker telescope, which was the largest aperture telescope in the world from its completion in 1917 to 1949, and the 60-inch telescope which was the largest operational telescope in the world when it was completed in 1908.

  7. Lists of telescopes - Wikipedia

    en.wikipedia.org/wiki/Lists_of_telescopes

    Telescope History Archived 2021-02-14 at the Wayback Machine, NASA Official Website, accessed 02/09/2019; History of the Telescope, accessed 02/09/2019; List of astronomical observatories and telescopes, Encyclopedia Britannica, 02/09/2019

  8. AOL Video - Serving the best video content from AOL and ...

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    The AOL.com video experience serves up the best video content from AOL and around the web, curating informative and entertaining snackable videos.

  9. Kitt Peak National Observatory - Wikipedia

    en.wikipedia.org/wiki/Kitt_Peak_National_Observatory

    The Kitt Peak National Observatory of the United States was dedicated on March 16, 1960. [14] At the dedication a 36-inch telescope and various facilities were ready. [14] Construction was underway for the then planned 84 inch telescope. [14] (i.e. the KPNO 2.1 meter) The 84 inch (2.1 m) had its first light in September 1964. [15]