Large Zenith Telescope

The Large Zenith Telescope is a liquid mirror telescope in British Columbia featuring a six-meter diameter mercury mirror spinning inside an observatory. The mirror rotates multiple times per minute, creating a reflective surface that captures light from celestial objects directly overhead.

The observatory began operations in 2004 and incorporated components from a former NASA facility. It was established at a forest research location in British Columbia's highlands to open a new chapter in ground-based astronomy research.

Scientists at the University of British Columbia use this observatory to study the structure of the universe and analyze light from distant galaxies.

Visitors can explore the grounds where the functioning observatory sits, but access is limited and strictly controlled by the university. It is best to check in advance since viewing times may be restricted or tours require prior arrangement.

The telescope contains about three tons of mercury spinning in a rotating container to keep the surface smooth and reflective. This amount of liquid metal is needed to create the large mirror surface required for this type of research instrument.

Location: British Columbia

Elevation above the sea: 395 m

Diameter: 6 m

Website: http://astro.ubc.ca/lmt/lzt

GPS coordinates: 49.28810,-122.57300

Latest update: December 9, 2025 18:43