Largest Optical Telescopes of Today & Tomorrow | |
Name and location | Primary-mirror aperture (meters) |
European Extremely Large Telescope (proposed) | 42 |
Thirty Meter Telescope (proposed) | 30 |
Giant Magellan Telescope (proposed) Cerro Las Campanas, Chile |
24.5 |
Gran Telescopio Canarias (GTC) La Palma, Canary Islands |
10.4 |
Keck Telescopes Mauna Kea, Hawaii |
10.0 (×2) |
Southern African Large Telescope (SALT) Sutherland, South Africa |
9.2 |
Hobby-Eberly Telescope (HET) Mount Fowlkes, Texas |
9.2 |
Large Binocular Telescope (LBT) Mount Graham, Arizona |
8.4 (×2) |
Large Synoptic Survey Telescope (LSST) Cerro Pachón, Chile |
8.4 |
Subaru Telescope, Mauna Kea, Hawaii | 8.2 |
Very Large Telescope, Cerro Paranal, Chile | 8.2 (×4) |
Frederick C. Gillett Gemini North Telescope Mauna Kea, Hawaii |
8.1 |
Gemini South Telescope, Cerro Pachón, Chile | 8.1 |
MMT Observatory, Mount Hopkins, Arizona | 6.5 |
Walter Baade and Landon Clay Telescopes (Magellan), Cerro Las Campanas, Chile | 6.5 (×2) |
Bolshoi Teleskop Azimultal'ny Mount Pastukhova, Russia |
6.0 |
Large Zenith Telescope ( (liquid mirror) Maple Ridge, British Columbia |
6.0 |
Hale Telescope, Palomar Mountain, California | 5.0 |
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