Title: Clyde Tombaugh
First published: 1991
Subjects: Astronomers, Biography, Sterrenkundigen, Astronomie, Forschung, Pluton (planète), Pluto (Zwergplanet), Tombaugh, Clyde William, - 1906-, Astronomers - United States - Biography, Pluto (Planet), Tombaugh, clyde william, 1906-1997, Pluto (dwarf planet)
Places: United States, Pluto (Planet), Pluto (Dwarf planet)
People: Clyde William Tombaugh (1906-), Clyde William Tombaugh (1906-1997)