The Coudé Auxiliary Telescope (CAT) is a coudé focus telescope located at the Lick Observatory near San Jose, California, south of Shane Dome, Tycho Brahe Peak.
The Coudé Auxiliary Telescope, built in 1969, is a 0.6m (24-inch) reflecting telescope in a stationary position at a fixed focus. The CAT is generally used for observation of brighter stars, since it collects less light than the 120-inch Shane.[1]
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