Hawaiian Island Telescopes

University of Hawaii Institute for Astronomy: Mauna Kea telescopes

United Kingdom Infrared Telescope 3.8 meters

Sabaru Telescope 8.2 meters

Keck Telescopes 10 meters

Gillett Telescope (Gemini North) 8.1 meters

Canada-France-Hawaii Telescope 3.6 meters

NASA Infrared Telescope Facility 3.0 meters

Maui(Haleakala) telescopes

Advanced Electro-Optical System Telescope 3.7 meters

South American Telescopes

Cerro Paranal (Chile)

Melipal Telescope 8.2 meters

Kueyen Telescope 8.2 meters

Antu Telescope 8.2 meters

Visible and Infrared Survey Telescope for Astronomy 4.1 meters

Yepun Telescope 8.2 meters

Cerro Manqui

Du Pont Telescope 2.5 meters

Walter Baade Telescope (Magellan II) 6.5 meters

Landon Cray Telescope (Magellan II) 6.5 meters

Cerro La Silla

New Technology Telescope 3.6 meters

ESO Telescope 3.6 meters

Cerro Tololo

Victor Blanco Telescope 4.0 meters

Cerro Pachon

Southern Astrophysical Research Telescope 4.1 meters

Gemini South Telescope 8.1 meters

Canary Islands Telescopes (La Palma)

Issac Newton Telescope 2.5 meters

Nordic Optical Telescope 2.5 meters

William Herschel Telescope 4.2 meters

Telescopio Nazionale Galileo Telescope 3.6 meters

Gran Telescopio Canarias Telescope 10.4 meters

African Telescopes

South African Large Telescope 9.2 meters (Sutherland)

European Telescopes

MPIA-CAHA Telescope 3.5 meters (Calar Alto, Spain)

Shajn Telescope 2.6 meters (Nauchny, Ukraine)

Asian Telescopes

Bolshoi Azimuthal Telescope 6.0 meters (Mount Pastukhov, Russia)

Byurakan Astrophysical Observatory Telescope 2.6 meters (Mount Aragatz, Armenia)

LAMOST 4.0 meters (Xinglong Station, China)

Australian Telescopes

Anglo-Australian Telescope 3.9 meters (Coonabarabran)

North American Telescopes

Large Zenith Telescope 6.0 meters (British Columbia, Canada)

Shane Telescope 3.0 (Mount Hamilton)

Hooker Telescope 2.5 meters (Mount Wilson)

Hale Telescope 5.0 meters (Palomar Mountain)

Wisconsin-Indiana-Yale-NOAO Telescope 4.0 meters (Kitt Peak)

Mayall Telescope 4.0 meters (Kitt Peak)

MMT 6.5 meters (Mount Hopkins)

Large Binocular Telescope two 8.4 meter mirrors on a single mount (Mount Graham)

Harlan Smith Telescope 2.7 meters (Mount Locke)

Starfire Telescope 3.5 meters (Kirtland AFB, New Mexico)

Astrophysical Research Consortium Telescope 3.5 meters (Apache Point, New Mexico)

Sloan Digital Telescope 2.5 meters (Apache Point, New Mexico)

Hobby-Eberly Telescope 9.2 meters (Mount Fowlkes, Texas)