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Submillimeter Telescope Observatory (SMTO)

Submillimeter Telescope Observatory
An observatory at an altitude of 3,180 m on Emerald Peak of Mount Graham, about 120 km northeast of Tucson, Arizona. It houses the Heinrich Hertz Telescope, a 10-m dish for use at submillimeter wavelengths that was opened in 1994. SMTO is jointly owned and operated by the Max-Planck-Institut für Radioastronomie (Bonn) and the University of Arizona's Steward Observatory.

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