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2. List of largest optical reflecting telescopes - Wikipedia

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

   Multiple mirror telescopes that are on the same mount and can form a single combined image are ranked by their equivalent aperture. Fixed altitude telescopes (e.g. HET) are also ranked by their equivalent aperture. All telescopes with an effective aperture of at least 3.00 metres (118 in) at visible or near-infrared wavelengths are included.

3. List of the largest optical telescopes in North America

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

   Hale Telescope Palomar Obs. 200 inch 508 cm 1949 USA: 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]

4. 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.

5. List of largest optical telescopes historically - Wikipedia

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

   Foucault's telescope 0.8 m 31.5" glass mirror reflector: First metal coated glass mirror telescope Marseilles observatory France 1862 William Lassell 48-inch [14] 1.22 m: 48" speculum metal mirror reflector: Malta: 1861–1865 Rosse telescope: Leviathan of Parsonstown: 1.83 m: 72" metal – speculum metal mirror reflector: World's largest 1845 ...

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   Amazon has released its list of the top 100 best Cyber Monday deals, ... This Dewalt drill is powerful — and it's got 4.8 stars on Amazon, after nearly 8,000 ratings. ... Celestron Telescope for ...

7. World’s most powerful telescope launched into space - AOL

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   The James Webb Space Telescope blasted off from Kourou spaceport in French Guiana. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800-290-4726 ...