The Cincinnati Observatory, known locally as Mt. Lookout Observatory, is located in Cincinnati, Ohio on top of Mount Lookout. It consists of two observatory buildings housing an 11-inch (28 cm) and 16 inch (41 cm) aperture refracting telescope. It is the oldest professional observatory in the United States. It was a key facility for astronomical research and education at the University of Cincinnati and currently operates as a 19th-century observatory. There are regular viewings through both historical telescopes as well as tours and additional programs. The observatory also has an extensive outreach program, providing astronomical education for the Ohio/Kentucky/Indiana region.
Original building atop Mt. Lookout
Illustration of the 11 inch "Merz and Mahler" refracting telescope
An observatory is a location used for observing terrestrial, marine, or celestial events. Astronomy, climatology/meteorology, geophysics, oceanography and volcanology are examples of disciplines for which observatories have been constructed. Historically, observatories were as simple as containing an astronomical sextant or Stonehenge.
The Sphinx Observatory on a mountain top in the Swiss Alps at 3,571 m (11,716 ft)
Atacama Large Millimeter Array, Chile, at 5,058 m (16,594 ft)
Paranal Observatory, Chile, home of the VLT at 2,635 m (8,645 ft)
The Mauna Kea Observatories, Hawaii, home of several of the world's largest optical telescopes at 4,205 m (13,796 ft)
