Lowell Observatory
in Flagstaff, Arizona since May 28, 1894
founded by astronomer Perceval Lowell
where Pluto was discovered in 1930
home of the Clark Refractor built in 1896
in Flagstaff, Arizona since May 28, 1894
founded by astronomer Perceval Lowell
where Pluto was discovered in 1930
home of the Clark Refractor built in 1896