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SIR JOHN HERSCHEL
SIR JOHN HERSCHEL
Berkshire, England (1792 - 1871)
Sir John Frederick William Herschel was an English mathematician, astronomer, chemist, experimental photographer and inventor. The son of astronomer Sir William Herschel, he originated the use of the Julian day system in astronomy. He named seven moons of Saturn and four moons of Uranus.
 

Professional astronomers use large telescopes all over the world, and even in space. Most of the largest ground-based reflecting telescopes are concentrated in Hawaii, Chile, and the Canary Islands that take advantage of the dark skies and superior seeing conditions created by high elevations, dry and steady airflow, and great distances from city lights. You will also find large relfecting telescopes in the United States (California, Arizona and Texas among other states), South Africa, Russia, Australia, China and other countries. Check out this list of large reflecting telescopes with primary mirrors that range in size from 15 to 2.2 meters in diameter for one that might be located near you, or plan your next vacation to visit one.

To view the details of any telescope in this list, please click on the name of the telescope. You can also sort the telescopes, by clicking on the table headings.

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Telescope Location Country
James Clerk Maxwell Mauna Kea, Hawaii USA 15
Gran Telescopio Canarias La Palma, Canary Islands Spain 10.4
Keck Mauna Kea, Hawaii USA 10
Keck II Mauna Kea, Hawaii USA 10
SALT Sutherland South Africa 10
Hobby-Eberly Mt. Folwkes, Texas USA 9.2
Large Binocular Telescope Mt. Graham, Arizona USA 8.4
Subaru Mauna Kea, Hawaii USA 8.3
Antu Cerro Paranal Chile 8.2
Kueyen Cerro Paranal Chile 8.2
Melipal Cerro Paranal Chile 8.2
Yepun Cerro Paranal Chile 8.2
Gillett (Gemini North) Mauna Kea, Hawaii USA 8.1
Gemini South Cerro Pachon Chile 8.1
MMT Mt. Hopkins, Arizona USA 6.5
Magellan - Walter Baade La Serena Chile 6.5
Magellan - Landon Clay La Serena Chile 6.5
Bolshoi Teleskop Azimutalnyi Nizhny Arkhyz Russia 6
LZT (Large Zenith Telescope) British Columbia Canada 6
Hale Mt. Palomar, California USA 5

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