Astrophysics (Index)About

Hale Telescope

(5.1 m reflector telescope in California)

Hale Telescope is a 5.1 m (200 inch) reflector telescope at Palomar Observatory. It began operation in 1949 and was the largest reflecting telescope until 1976 when the BTA-6 was built. It is named for George Ellery Hale who orchestrated its construction.

The telescope has an equatorial mount, using a Serrurier truss, a design that maintains optical alignment despite gravity. The mirror is a glass (Pyrex) monolithic mirror made by Corning Glass Works. Depending upon the particular instrument's mounting, the telescope functions as a Cassegrain reflector, a prime focus reflector, or a coudé focus telescope reflector. Among the telescope's current instruments:

Future plans:

Some instruments listed in the past:

Further reading:

Referenced by pages:
angular resolution
Atlas of Peculiar Galaxies (APG)
coudé focus telescope
equatorial mount
Lick Observatory
Mayall 4m Telescope
monolithic mirror
Palomar 48 Inch Telescope (P48)
Palomar Observatory
Palomar Four-filter Survey (PC)
prime focus
reflector telescope
segmented mirror
TripleSpec (TSpec)