Astronomers have contributed greatly to our understanding of physics and motion. In this section you can learn all about famous astronomers and what each of them has contributed to our understanding of space.
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Lowell, Percival (1855-1916), a United States astronomer. In 1894 he established the Lowell Observatory at Flagstaff, Arizona.
Burnham, Sherburne Wesley (1838-1921), a United States astronomer. His General Catalogue of Double Stars (1906) contains data on 13,665 double stars, more than a thousand of which he discovered.
Newcomb, Simon (1835-1909), a United States astronomer. He calculated the movements of the moon, Mercury, Venus, Mars, Uranus, and Neptune more precisely than had been achieved previously.
Lockyer, Sir Joseph Norman (1836-1920), an English astronomer. He was one of the first to study the sun and stars with a spectroscope.
Von Kármán, Theodore (1881-1963) was a Hungarian-born American physicist and engineer who made great contributions to the field of aerodynamics and rocket technology.
Sitter, Willem de (18721934), a Dutch astronomer. He was a pioneer in applying Albert Einstein's theory of relativity to astronomy and developed a model of an expanding, curved universe.
Campbell, William Wallace (1862-1938), an American astronomer, made important measurements of the motion of stars.