A high-resolution spectrograph for the Extremely Large Telescope (ELT)

The Extremely Large Telescope (ELT) will sit on top of Cerro Armazones, approximately 3000 metres high in Chile’s Atacama Desert, surrounded by breathtaking views of the plains below. This image (an artistic rendering) shows how the telescope will look like on top of the mountain.

Credit: ESO

The Extremely Large Telescope (ELT) is a next-generation optical telescope under construction for the European Southern Observatory (ESO). It will have a 39-meter-diameter primary mirror composed of 798 hexagonal mirror elements.

HIRES is the high-resolution spectrograph for the ELT. Some of the most prominent scientific goals include:

  • characterizing the atmospheres of Earth-like planets in other solar systems, with the ultimate goal of discovering signs of life; discovering the first generation of stars by their chemical fingerprint in the prehistoric universe
  • the discovery of the variation of some fundamental constants of physics, such as the electron-proton mass ratio, or the demonstration of the most stringent constraints on these quantities.
Project website: http://hires.inaf.it


Universidade Federal do Rio Grande do Norte - UFRN

Pontificia Universidad Católica de Chile - PUC

Copenhagen University

Laboratoire d'Astrophysique de Marseille - LAM

Instituto Nazionale di Astrofisica - INAF

Nicolaus Copernicus University

Porto University

Universidad La Laguna

Uppsala University

Geneva Observatory

Cambridge University

Last update: 9. February 2021