The Hobby-Eberly Telescope (HET, originally to be named the Spectroscopic Survey Telescope, SST) is a 10-meter reflector telescope at the McDonald Observatory in Texas that began operation in 1996. It has a segmented mirror consisting of 91 hexagonal mirror segments. Instruments:
Its instruments are used for the HETDEX survey, i.e., Hobby-Everly Telescope Dark Energy Experiment.
The Southern African Large Telescope (SALT) was originally planned to be a copy of the Hobby-Eberly Telescope which has the same spherical primary mirror but SALT includes some significant changes.