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Mauna Kea Telescopes
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Maintained by W-W
Optical/Infrared
| UH 0.9m | UH 0.9-m educational telescope | 0.9m | University of Hawaii at Hilo | 2010 | |
| UH 2.2m | UH 2.2-m telescope | 2.2m | UH Institute for Astronomy | 1970 | |
| IRTF | NASA Infrared Telescope Facility | 3.0m | NASA | 1979 | |
| CFHT | Canada-France-Hawaii Telescope | 3.6m | Canada/France/UH | 1979 | |
| UKIRT | United Kingdom Infrared Telescope | 3.8m | United Kingdom | 1979 | |
| Keck I | W. M. Keck Observatory | 10m | Caltech/University of California | 1993 | |
| Keck II | W. M. Keck Observatory | 10m | Caltech/University of California | 1996 | |
| Subaru | Subaru Telescope | 8.3m | Japan | 1999 | |
| Gemini | Gemini Northern Telescope | 8.1m | USA/UK/ Canada/Argentina/ Australia/Brazil/Chile |
1999 |
Submillimeter
| CSO | Caltech Submillimeter Observatory | 10.4m |
Caltech/NSF | 1987 | |
| JCMT | James Clerk Maxwell Telescope | 15m |
UK/Canada/Netherlands | 1987 | |
| SMA | Submillimeter Array | 8x6m |
Smithsonian Astrophysical Observatory/Taiwan | 2002 |
Radio
| VLBA | Very Long Baseline Array | 25m |
NRAO/AUI/NSF | 1992 |
Mirror sizes
This chart shows all the mirrors of the optical and infrared telescopes on Mauna Kea to the same scale (click to enlarge)
The Hubble Space Telescope's mirror is similar in size to that of the UH 2.2 meter telescope -- the second smallest telescope on the mountain.