Written by the Fiveable Content Team • Last updated September 2025
Written by the Fiveable Content Team • Last updated September 2025
Definition
The Southern African Large Telescope (SALT) is the largest optical telescope in the southern hemisphere, located in Sutherland, South Africa. It is designed to observe celestial objects visible only from the southern skies.
5 Must Know Facts For Your Next Test
SALT has a hexagonal primary mirror array with a diameter of 10 meters.
It utilizes an innovative design similar to the Hobby-Eberly Telescope (HET) in Texas.
SALT's primary mirror is composed of 91 individual hexagonal segments.
The telescope is optimized for spectroscopic observations, particularly useful for studying stars, galaxies, and quasars.
SALT began full science operations in September 2011 after initial construction was completed in 2005.