Keck Observatory is near summit of Mauna Kea in Hawaii, 4,145 m (13,600 ft) elevation. Has two 10 meter Adaptive Optics Reflector Telescopes (2nd largest in the world in 2012). The two can operate as a Interferometer (known as the Keck Interferometer or KI), with a baseline of 85 meters.
Named for W.M. Keck whose foundation funded it.
Keck Planet Imager And Characterizer is a proposed instrument to enhance the capabilities of the infrared instruments imaging exoplanets.
Adaptive Optics (AO)
Large Altazimuth Telescope (BTA-6)
Keck Planet Finder (KPF)
Keck Planet Imager And Characterizer (KPIC)
Mauna Kea Observatories (MKO)
Overwhelmingly Large Telescope (OWL)
Ritchey-Chrétien Telescope (RCT)