Palomar Observatory

The observatory on Palomar Mountain in California where the 5-metre (200-inch) Hale Telescope is sited. It is owned and operated by the California Institute of Technology (Caltech). The other instruments at the observatory are the 1.2-metre (48-inch) Oschin Telescope (a Schmidt camera), a 46-centimetre (18-inch) Schmidt camera and the 1.5-metre (60-inch) reflector owned jointly by Caltech and the Carnegie Institution of Washington.