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Charles Greeley Abbot (May 31, 1872 – December 17, 1973) was an American astrophysicist and the fifth secretary of the Smithsonian Institution, serving from 1928 until 1944.
Charles Greeley Abbot was an American astrophysicist who, as director of the Smithsonian Astrophysical Observatory in Washington, D.C., for almost four decades, engaged in a career-long campaign to demonstrate that the Sun’s energy output varies and has a measurable effect on the Earth’s weather.
The fifth Smithsonian Secretary, Charles Greeley Abbot, served from 1928 to 1944, and was the first Secretary to retire from office. An astrophysicist who studied solar radiation, Abbot was born in Wilton, New Hampshire, into a family of farmers.
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CHARLES GREELEY ABBOT was the second director of the Smithsonian Astrophysical Observatory and the fifth Secretary of the Smithsonian Institution. He was the second and last person to hold both posts simultaneously and is remembered today for his skill as an instrumentalist and his unshakable belief that the Sun is a variable star and that its ...
Charles Greeley Abbot, 1872–1973, American astrophysicist, b. Wilton, N.H. He was acting director in 1896 and director in 1907 of the astrophysical observatory of the Smithsonian Institution; he was secretary of the institution from 1928 to 1944, when he became a research associate.
Biographical Memoirs: Charles Greeley Abbot. Usage Conditions Apply. Summary. In this annual journal of the American Philosophical Society, the author offers a biography of Charles Greeley Abbot, the fifth Secretary of the Smithsonian Institution.
C HARLES GREELEY ABBOT was the second director of the Smithsonian Astrophysical Observatory and the fifth Secretary of the Smithsonian Institution.
