Hobby-Eberly Telescope


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Hobby–Eberly Telescope

(hob -ee eb -er-lee) (HET) A telescope at the McDonald Observatory in Texas, used mainly for spectrographic surveys. It has an 11-meter segmented spherical mirror (f/1.3, with an effective aperture of 9.2 meters) on an altazimuth mounting, tipped at a permanent angle of 35° to the zenith. A movable secondary mirror reflects images onto it, and in this way it can survey 70% of the sky visible at the site. It was commissioned in 1997.
References in periodicals archive ?
In order to build a world-class telescope on a limited budget, its builders decided to utilize the design of the Hobby-Eberly Telescope (HET) in Texas.
The find comes out of the Hobby-Eberly Telescope Massive Galaxy Survey (MGS).
The Southern African Large Telescope (SALT) is an evolution of the Hobby-Eberly Telescope (HET) at McDonald Observatory in Texas, USA.
To date, astronomers have discovered nearly 700 planets orbiting stars in our galaxy (with billions suspected), but they have probed the atmospheres of only a handful, using space telescopes and the largest ground-based telescopes such as the Hobby-Eberly Telescope (HET).
To determine the blazar's distance, the team then took visible-light spectra with the Hobby-Eberly Telescope in Fort Davis, Texas.
Using the Hobby-Eberly Telescope, the astronomers observed the planets' parent stars - called HD 240237, BD +48 738, and HD 96127 - tens of light years away from our solar system.
Low-resolution spectra taken at the Hobby-Eberly Telescope in Texas suggest orbital motion, yielding a combined blackhole mass of at least 150 million Suns.
McArthur and her team used data from Hubble Space Telescope (HST), theiant Hobby-Eberly Telescope, and other ground-based telescopes combined with extensive modeling to unearth a landslide of information about the planetary system surrounding the nearby star Upsilonndromedae.
Modeled after the Hobby-Eberly Telescope at McDonald Observatory in western Texas, SALT's 10-by-11-meter primary mirror consists of 91 hexagonal segments and has an effective aperture of 10 meters.