Cerro Tololo Inter-American Observatory

The research facility stands at 2207 meters elevation, housing 34 professional telescopes for studying stars and celestial phenomena in the southern hemisphere.

Established in 1962, the observatory began operations with the Victor Blanco telescope, a 4-meter diameter instrument that commenced scientific observations in 1976.

The facility contributes to scientific education through regular public tours, allowing visitors to learn about astronomical research and celestial observation methods.

Free guided tours operate every Saturday from 9:00 to 13:00, requiring advance reservations at least one month prior through telephone or email contact.

The location offers clear skies throughout the year due to minimal light pollution and atmospheric conditions influenced by cold Pacific Ocean currents.

Location: Coquimbo Region

Official opening: 1962

Elevation above the sea: 2,207 m

Website: https://noirlab.edu/public/programs/ctio/

Part of: Global Oscillations Network Group

Website: https://noirlab.edu/public/programs/ctio

GPS coordinates: -30.16966,-70.80652

Latest update: May 18, 2025 15:27