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Papandreou, George, 1888–1968, Greek political leader

(Encyclopedia)Papandreou, George päˌpəndrāˈo͞o [key], 1888–1968, Greek political leader, father of Andreas Papandreou and grandfather of George Papandreou (b. 1952). As a young man he became involved in ant...

Albumazar

(Encyclopedia)Albumazar älˌbo͞omäˈzər [key], 805?–885, Arab astronomer, more fully Abu-Mashar Jafar ibn Muhammad. In his De magnis conjunctionibus he claimed that the world had been created when the seven p...

Galle, Johann Gottfried

(Encyclopedia)Galle, Johann Gottfried yōˈhän gôtˈfrēt gäˈlə [key], 1812–1910, German astronomer. He is noted for his discovery of the planet Neptune, Sept. 23, 1846, by following the guidance of calculat...

Asada Goryu

(Encyclopedia)Asada Goryu äsäˈdä gôrˈyo͞o [key], 1734–99, Japanese astronomer who helped to introduce modern astronomical instruments and methods into Japan. Asada spent much of his career in the flourishi...

Rheticus

(Encyclopedia)Rheticus (Georg Joachim von Lauchen) rāˈtēko͝os, gāˈôrk yōäˈkhĭm fən louˈkhən [key], 1514–76, German astronomer, mathematician, and first disciple of Copernicus. In 1540 he printed a s...

De la Rue, Warren

(Encyclopedia)De la Rue, Warren dĕlˈəro͞o, dĕləro͞oˈ [key], 1815–89, British scientist and inventor. Especially noted as an astronomer, he was a pioneer in celestial photography. He adapted the wet-plate ...

Hough, George Washington

(Encyclopedia)Hough, George Washington hŭf [key], 1836–1909, American astronomer, b. Montgomery co., N.Y., grad. Union College, 1856. He discovered 627 double stars and made systematic studies of the surface of ...

Kirkwood gaps

(Encyclopedia)Kirkwood gaps, regions in the asteroid belt within which few asteroids are found. Astronomer Daniel Kirkwood first observed (1886) that few asteroids had an orbital period close to 1⁄2, 1⁄3, or 2�...

Landskrona

(Encyclopedia)Landskrona länskro͞oˈnä [key], city (1990 pop. 26,600), Malmöhus co., SW Sweden, a seaport on the Øresund. It is a commercial and industrial center. Manufactures include metal products, ships, l...

Ulugh-Beg

(Encyclopedia)Ulugh-Beg or Ulug-Beg both: o͞oˈlo͞og bĕg [key], 1394–1449, Timurid ruler and astronomer. The grandson of Timur (or Tamerlane), he succeeded to the Timurid domain in 1447. A patron of the arts a...