Astrophysics (index)

Large Altazimuth Telescope

(6 meter reflector telescope in Russia)

The Large Altazimuth Telescope (BTA-6) is a 6m reflecting telescope in southern Russia, that began operation in 1975 and was the world's largest telescope until Keck in 1990. It has a Monolithic Mirror and is of the Ritchey-Chrétien Telescope design. The current mirror was installed in 1978 and has problems that reduce its performance.


Referenced by:
Hale Telescope
Monolithic Mirror
Segmented Mirror