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Amici, Giovanni Battista

(Encyclopedia)Amici, Giovanni Battista jōvänˈnē bät-tēsˈtä ämēˈchē [key], 1786–1863, Italian astronomer, mathematician, and naturalist. He became director of the observatory and professor of astronomy...

Donati, Giovanni Battista

(Encyclopedia)Donati, Giovanni Battista jōvänˈnē bät-tēsˈtä dōnäˈtē [key], 1826–73, Italian astronomer, b. Pisa. Serving as director of the Florence Observatory from 1864, he was a pioneer in the spec...

Hagen, Johannes Georg

(Encyclopedia)Hagen, Johannes Georg yōhäˈnəs gāˈôrk häˈgən [key], 1847–1930, American astronomer and mathematician, b. Austria. A Jesuit, he came in 1880 to the United States to teach. In 1888 he was ma...

Kapteyn, Jacobus Cornelius

(Encyclopedia)Kapteyn, Jacobus Cornelius yäkōˈbəs kôrnāˈlēəs käptīnˈ [key], 1851–1922, Dutch astronomer. He was an authority on the Milky Way, of which he made notable statistical studies; he construc...

Peirce, Benjamin

(Encyclopedia)Peirce, Benjamin, 1809–80, American mathematician and astronomer, b. Salem, Mass., grad. Harvard, 1829. From 1833 he was a professor at Harvard; he helped establish the Harvard Observatory and was a...

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...

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...

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...