Hobby-Eberly Telescope

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.

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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.

Flawed giants: the world's largest optical telescopes have had to overcome serious hurdles, delaying their scientific success

The find comes out of the Hobby-Eberly Telescope Massive Galaxy Survey (MGS).

Black hole with mass 17 billion times that of the Sun discovered

The Southern African Large Telescope (SALT) is an evolution of the Hobby-Eberly Telescope (HET) at McDonald Observatory in Texas, USA.

Dr Darragh O'Donoghue receives the Gill Medal

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).

Jupiter-sized 'evaporating' planet probed with Hobby-Eberly telescope

To determine the blazar's distance, the team then took visible-light spectra with the Hobby-Eberly Telescope in Fort Davis, Texas.

Powerhouse astronomy: blazing black hole from the early universe

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.

3 new planets and mystery object discovered outside 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.

Black hole monster mash: when supermassive black holes merge, space-time rocks

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.

Astronomers discover 'out of whack' planetary system

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.