The 200-inch Hale Telescope
The 200-inch (5.1 m) Hale Telescope (f/3.3) was the world's largest effective telescope for 45 years (1948 - 1993). It is still a workhorse of modern astronomy. It is used nightly for a wide range of astronomical studies. On average the weather allows for at least some data collection about 290 nights a year.
Watch members of the Palomar day crew install the
adaptive optics instrument PHARO (Palomar High
Angular Resolution Observer) into the Hale Telescope's
Cassegrain cage in this
(~62 mb Quicktime movie).
Watch another instrument change as the Large Format Camera is pulled out of prime focus (at the top of the Hale Telescope) and the Wide-field Infrared Camera is installed in its place this time-lapse movie (~31 mb Quicktime movie).:
Instrument changes like these happen several times a month.
Time lapse movie of the Hale Telescope dome at night. (~36 mb Quicktime movie)
The Hale Telescope at Palomar Observatory is operated as part of a collaborative agreement between the California Institute of Technology, its divisions Caltech Optical Observatories and the Jet Propulsion Laboratory (operated for NASA), and Cornell University.
Choose one of the telescopes listed on the right to see images and learn more about another of the Palomar Observatory's Telescopes.