Bernard Lyot Telescope
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The Bernard Lyot Telescope (''Téléscope Bernard Lyot,'' or TBL) is a 2-meter Cassegrain
telescope A telescope is a device used to observe distant objects by their emission, Absorption (electromagnetic radiation), absorption, or Reflection (physics), reflection of electromagnetic radiation. Originally, it was an optical instrument using len ...
operating in the visible domain since 1980. It is located at an elevation of 2,877 meters on the Pic du Midi in the French
Pyrenees The Pyrenees are a mountain range straddling the border of France and Spain. They extend nearly from their union with the Cantabrian Mountains to Cap de Creus on the Mediterranean coast, reaching a maximum elevation of at the peak of Aneto. ...
. Since 2007, the Bernard Lyot Telescope has housed an echelle spectropolarimeter, NARVAL, which allows astronomers to probe stellar magnetic fields with exquisite sensitivity.


See also

* Observatoire Midi-Pyrénées *
List of largest optical telescopes in the 20th century The following is a list of the largest optical telescopes in the 20th century, paying special attention to the diameter of the mirror or lens of the telescope's Objective (optics), objective, or aperture. Aperture rank currently goes approximately ...


External links

* Optical telescopes {{telescope-stub