Landmark: United States Logo

Lowell Observatory

1400 W Mars Hill Road
Flagstaff, Coconino County, Arizona, 86001

Clark dome
Photo: License: 1
Lowell Observatory is among the oldest observatories in the United States. It was founded in 1894 by astronomer Percival Lowell, and the Observatory's original 24-inch (0.61 m) Alvan Clark Telescope is still in use today for public education.

The dwarf planet Pluto was discovered at the Lowell Observatory by Clyde Tombaugh in 1930.

Lowell Observatory Categories

Other Lowell Observatory Resources

Map of the Area Around
Lowell Observatory

Visit our sister site:
Landmark Earth Logo