Lowell Observatory Lowell Observatory Lowell Observatory is an astronomical observatory in Flagstaff, Arizona, United States. Lowell Observatory was established in 1894, placing it among the oldest observatories in the United States, and was designated a National Historic Landmark in 1965. In 2011, the Observatory was named one of "The World's 100 Most Important Places" by TIME. It was at the Lowell Observatory that the dwarf planet Pluto was discovered in 1930 by Clyde Tombaugh. The observatory was founded by astronomer Percival Lowell of Boston's Lowell family and is overseen by a sole trustee, a position historically handed down through the family. The
Lowell State College with 108 students and five faculty members. The original classroom building opened the next year at the corner of Broadway and Wilder streets and quickly became a landmark in the city. Designed by local firm Stickney & Austin, it reflects the fashion of the time: high-style Beaux Arts with classical symmetry, arches, cast-iron lampposts and yellow brick. Its design was influenced in part by Lowell High School, which was also designed by Lowell native Frederick W. Stickney. Frank Coburn, for whom the hall was later named, served as the school's first principal until 1908. The main mission of the school