MMT Observatory MMT Observatory The MMT Observatory (MMTO) is an astronomical observatory on the site of Fred Lawrence Whipple Observatory (IAU observatory code 696). The Whipple observatory complex is located on Mount Hopkins, Arizona, US (55 km south of Tucson) in the Santa Rita Mountains. The observatory is run by the University of Arizona and the Smithsonian Institution, and has a visitor center in nearby Amado, Arizona. The MMTO is the home of the MMT (formerly Multiple Mirror Telescope), which currently has a primary mirror 6.5 m in diameter. The name originally comes from the fact that the light gathering for the
Michigan State University Observatory MSU campus. In 1880, Professor Rolla C. Carpenter built an observatory for the (then) State Agricultural College to house an Alvan Clark & Sons refracting telescope of 5.5 inches aperture. The observatory was located behind his residence at Faculty Row No.2, near where Sarah Langdon Williams Hall stands today. The original telescope is on exhibit at the Abrams Planetarium. Approximately one pair of evenings per month, if the sky is sufficiently clear, the MSU observatory opens its doors for public observing. The MSU 0.6 meter telescope will be set up for viewing on selected astronomical objects throughout the evening. Also,