Guillermo Haro Observatory

Guillermo Haro Observatory is an astronomical observatory in Sonora, Mexico, operated by the National Institute of Astrophysics, Optics and Electronics, about 13 kilometers north of Cananea. Named for Professor Guillermo Haro, one of Mexico’s best-known astronomers, it centers on a 2.12-meter Ritchey–Chrétien telescope with a 0.5-meter secondary mirror for varied instruments at its Cassegrain focus. Planning began in 1972, the facility was dedicated in 1987, and routine operations started in 1992. A separate 0.41-meter Schmidt–Cassegrain telescope measures atmospheric extinction and monitors light pollution, helping both astronomical research and protection of observing conditions.

Sonora · Mexico