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List of largest optical reflecting telescopes

Here is a list of the largest optical reflecting telescopes sorted by mirror diameter.




           
Name Diameter Country Site Built
GTC 10.4 m Spain Canary Islands 2005
Keck 1 9.8 m USA Mauna Kea, Hawaii 1993
Keck 2 9.8 m USA Mauna Kea, Hawaii 1996
Hobby-Eberly Telescope (HEB) 9.2 m USA, Germany Mt Fowlkes, USA 1997
Large Binocular Telescope (LBT) 2x8.4 m Italy, USA, Germany Mt Graham, USA 2004
Subaru (NLT) 8.3 m Japan Mauna Kea, Hawaii 1999
VLT 1 (Antu) 8.2 m Europe Cerro Paranal, Chile 1998
VLT 2 (Kueyen) 8.2 m Europe Cerro Paranal, Chile 1999
VLT 3 (Melipal) 8.2 m Europe Cerro Paranal, Chile 2000
VLT 4 (Yepun) 8.2 m Europe Cerro Paranal, Chile 2001
Gemini North 8.1 m USA, UK, Canada, Chile, Australia, Argentina, Brazil Mauna Kea, Hawaii 1999
Gemini South 8.1 m USA, UK, Canada, Chile, Australia, Argentina, Brazil Cerro Pachón, Chile 2001
Multiple Mirror Telescope (MMT) 6.5 m USA Mt Hopkins, USA 1999
Magellan 6.5 m USA Las Campanas, Chile 1998
BTA-6 6 m Russia Mt Pastoukhov, Caucasus 1976
LZT 6 m Canada, France Maple Ridge, British Columbia 2003
Hale Telescope 5 m USA Mt Palomar, USA 1948
William Herschel Telescope 4.2 m UK, Netherlands, Spain Canary Islands 1987
SOAR 4.2 m USA, Brazil   2002