Bernard Lyot Telescope

Bernard Lyot Telescope

Bernard Lyot at sunrise
Alternative names	TBL
Named after	Bernard Lyot
Location(s)	France
Coordinates	42°54′47″N 0°11′48″W
Altitude	2,877 m (9,439 ft)
Telescope style	laboratory optical telescope
Diameter	2 m (6 ft 7 in)
Website	www.tbl.obs-mip.fr
Location of Bernard Lyot Telescope
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Underneath mirror inside

Pic du Midi de Bigorre Observatory, with the Bernard Lyot on the far left

The Bernard Lyot Telescope (Téléscope Bernard Lyot, or TBL) is a 2 m Cassegrain telescope operating in the visible domain, since 1980. It is located at 2877 m elevation on the Pic du Midi in the French Pyrenees. Since 2007, the Bernard Lyot Telescope is housing an echelle spectropolarimeter NARVAL, allowing astronomers to probe stellar magnetic fields to an exquisite sensitivity.

See also

• List of largest optical telescopes in the 20th century