Died 1992-11-05.
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Jan Hendrik Oort
Jan Hendrik Oort was a Dutch astronomer who made significant contributions to the understanding of the Milky Way and who was a pioneer in the field of radio astronomy. The New York Times called him "one of the century's foremost explorers of the universe"; the European Space Agency website describes him as "one of the greatest astronomers of the 20th century" and states that he "revolutionised ast…
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science · Dutch astronomer (1900–1992) · astronomer · physicist · university teacher · also Jan Hendrik Oort, Jan Oort, J. Oort, J.H. Oort, Oort
Born 28 April 1900 · Died 5 November 1992 · Q309861
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1992· 1 entry
1987· 1 entry
Awarded Kyoto Prize in Basic Sciences (1987).
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1986· 1 entry
76 years later, he went up in a plane and was able to see the famous comet once more
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1984· 1 entry
Awarded Balzan Prize (1984).
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1972· 2 entries
Won Karl Schwarzschild Medal (1972).
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Association pour le Développement International de l'Observatoire de Nice, ADION medal, 1978
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1967· 1 entry
Awarded Karl G. Jansky Lectureship (1967).
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1966· 2 entries
Awarded Vetlesen Prize (1966).
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National Radio Astronomy Observatory, Jansky Prize, 1967
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1961· 1 entry
Awarded honorary doctor of the University of Bordeaux (1961).
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1960· 1 entry
Awarded De Gouden Ganzenveer (1960).
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1959· 1 entry
Awarded Foreign Member of the Royal Society (1959).
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1955· 1 entry
Oort's name appeared in Life magazine's list of the 100 most famous living people
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1951· 3 entries
Awarded Henry Norris Russell Lectureship (1951).
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In detecting the 21-centimeter radio emission from interstellar hydrogen spectral line at radio frequencies
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Oort and his wife spent several months in Princeton and Pasadena, an interlude that led to a paper by Oort and Lyman Spitzer on the acceleration of interstellar clouds by O-type stars
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1947· 1 entry
Awarded Prix Jules Janssen (1947).
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1946· 3 entries
Won Gold Medal of the Royal Astronomical Society (1946).
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Won Janssen Medal (1946).
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Prix Jules Janssen, the highest award of the Société astronomique de France, the French astronomical society (1947)
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1942· 2 entries
Won Bruce Medal (1942).
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Gold Medal of the Royal Astronomical Society in 1946
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1941· 1 entry
And Ruth Hannah Faber, who was the daughter of Jan Faber and Henrietta Sophia Susanna Schaaii, and who died on November 20, 1957
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1934· 1 entry
Oort became assistant to the director of Leiden Observatory; the next year he became General Secretary of the International Astronomical Union (IAU), a post he held until 1948; in 1937 he was elected to the Royal Academy
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1932· 2 entries
Wrote, "This leads to the conclusion that there must be considerable amounts of invisible matter
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“This leads to the conclusion that there must be considerable amounts of invisible matter.”
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1927· 1 entry
Oort married Johanna Maria (Mieke) Graadt van Roggen (1906–1993)
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1926· 1 entry
Received his doctorate from Groningen with a thesis on the properties of high-velocity stars
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1924· 1 entry
Oort returned to the Netherlands to work at Leiden University, where he served as a research assistant, becoming Conservator in 1926, Lecturer in 1930, and Professor Extraordinary in 1935
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1921· 1 entry
Oort was appointed assistant at Groningen, but in September 1922, he went to the United States to do graduate work at Yale and to serve as an assistant to Frank Schlesinger of the Yale Observatory
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1917· 1 entry
Went to Groningen University to study physics
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1903· 1 entry
Oort's parents moved to Oegstgeest, near Leiden, where his father took charge of the Endegeest Psychiatric Clinic
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1900· 1 entry
Born 1900-04-28.
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