CALTECH

Palomar Observatory, located atop Palomar Mountain in north San Diego County, California, is a center of astronomical research owned and operated by Caltech. The Observatory is home to three active research telescopes: the 200-inch (5.1-meter) Hale Telescope, the 48-inch (1.2-meter) Samuel Oschin Telescope, and the 60-inch (1.5-meter) telescope. Research at Palomar Observatory is pursued by a broad community of astronomers from Caltech and other domestic and international partner institutions... Conceived of almost a hundred years ago, Palomar Observatory has been at the forefront of astronomical research since mid-century. Today, the Observatory operates every clear night and is an iconic facility for scientific advancement, instrument development, and student training... The different sections of this website touch on the various aspects of the Observatory-the place, the science, the tradition, and the people who have made it special-as well as provide information on visiting..

Primary location: Palomar Mountain United States