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Oort, Jan Hendrik |
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Oort, Jan Hendrik (ōrt), 1900–1992, Dutch astronomer. He confirmed (1927) Bertil Lindblad's theory of the Milky Way galaxy's rotation. In the 1950s he and his colleagues used radio astronomical means to map the spiral-arm structure of the galaxy. Oort proposed (1950) that comets comet [Gr.,=longhaired], a small celestial body consisting mostly of dust and gases that moves in an elongated elliptical or nearly parabolic orbit around the sun. Comets visible from the earth can be seen for periods ranging from a few days to several months. ..... Click the link for more information. originate in a cloud of material (the Oort cloud) orbiting the sun at great distance and that they are occasionally deflected into the inner solar system by gravitational perturbation from the passing of nearby stars. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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This proposed reservoir, the Oort cloud, would be the home of longer-period comets. Fat Beats, Statra Recordings, Complete Distribution, Turntable Lab, Oort Media, Stray Dog Music, Victor Calderone's company Waveform, SpinArt, Witchdoctor, AM Only, Atomic Recording Company, 7H Recording, Stratax, Centaur Entertainment, Domino Recording Company, Tag Team Media, and Mos Def's company Big & Small all hold multi-year leases with Two Trees Management Co. Van Oort, "Augustine on Sexual Concupiscence and Original Sin," Studia Patristica vol. |
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