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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. Gran Telescopio Canarias - Wikipedia

    en.wikipedia.org/wiki/Gran_Telescopio_Canarias

    The Gran Telescopio Canarias (GranTeCan or GTC) is a 10.4 m (410 in) reflecting telescope located at the Roque de los Muchachos Observatory on the island of La Palma, in the Canary Islands, Spain. It is the world's largest single-aperture optical telescope. [1] Construction of the telescope took seven years and cost €130 million.

  4. List of largest optical telescopes historically - Wikipedia

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

    The following is a list of largest single mount optical telescopes sorted by total objective diameter (aperture), including segmented and multi-mirror configurations. It is a historical list, with the instruments listed in chronological succession by objective size.

  5. Arecibo Telescope - Wikipedia

    en.wikipedia.org/wiki/Arecibo_Telescope

    Completed in November 1963, the Arecibo Telescope was the world's largest single-aperture telescope for 53 years, until it was surpassed in July 2016 by the Five-hundred-meter Aperture Spherical Telescope (FAST) in Guizhou, China.

  6. Five-hundred-meter Aperture Spherical Telescope - Wikipedia

    en.wikipedia.org/wiki/Five-hundred-meter...

    It is the world's largest filled-aperture radio telescope [2] and the second-largest single-dish aperture, after the sparsely-filled RATAN-600 in Russia. [ 3 ] [ 4 ] It has a novel design, using an active surface made of 4,500 metal panels which form a moving parabola shape in real time. [ 5 ]

  7. Arecibo Observatory - Wikipedia

    en.wikipedia.org/wiki/Arecibo_Observatory

    Completed in 1963, it was the world's largest single-aperture telescope for 53 years, surpassed in July 2016 by the Five-hundred-meter Aperture Spherical Telescope (FAST) in China. On August 10 and November 6 2020, two of the receiver's support cables broke and the NSF announced that it would decommission the telescope.

  8. Large Millimeter Telescope - Wikipedia

    en.wikipedia.org/wiki/Large_Millimeter_Telescope

    The Large Millimeter Telescope (LMT) (Spanish: Gran Telescopio Milimétrico, or GTM), officially the Large Millimeter Telescope Alfonso Serrano (Spanish: Gran Telescopio Milimétrico Alfonso Serrano), is the world's largest single-aperture telescope in its frequency range, built for observing radio waves in the wave lengths from approximately 0.85 to 4 mm.

  9. List of the largest optical telescopes in North America

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

    This is a list of the largest optical telescopes in North America. ... Daniel K. Inouye Solar Telescope: 4 m: 158" Single: USA: ... Aperture First Light Nation