Browse Items (26 total)

Lowell Observatory, Lowell Observatory Brochure, 1955 ca.

A Lowell Observatory brochure from the 1950s.

Lowell Observatory, Lowell Observatory Brochure, 1990 circa

A Lowell Observatory brochure from circa 1990.

Lowell Observatory, Lowell Observatory Visitor Guestbook, 1894-1938, 1894 - 1938

Lowell Observatory visitor guestbook from 1894 to 1938. Notable signatures include astronomers Edward Emerson Barnard, Bart Bok, William Wallace…

United States Department of the Interior, Map of the Arizona Territory, 1892, 1892

Map of the Arizona Territory used by Andrew Douglass on his trip to find a site for Percival Lowell's observatory in 1894. Douglass' handwritten notes…

Reaves, Gibson, W.H. Pickering, Milton Humason, and the Discovery of Pluto, 1983-07-22

"W.H. Pickering, Milton Humason, and the Discovery of Pluto." Talk given by Gibson Reaves at Lowell Observatory, July 22, 1983

Tombaugh, Muron, Telegram to Clyde Tombaugh from his parents, 1930-03-14

Telegram to Clyde Tombaugh from his parents congratulating him the day after the announcement that he discovered a planet (Pluto)

Tags: Clyde Tombaugh, Pluto