Keeler, James

Keeler, James

▪ American astronomer
born Sept. 10, 1857, La Salle, Ill., U.S.
died Aug. 12, 1900, San Francisco, Calif.
 American astronomer who confirmed that Saturn's ring system is not a solid unit but is composed of a vast swarm of tiny particles.

      Interested in astronomy from an early age, Keeler became assistant to the noted astronomer Samuel P. Langley at the Allegheny Observatory, Pittsburgh, Pa., in 1881. From 1886 to 1891 he was on the staff of the Lick Observatory, Mount Hamilton, Calif., where he headed the spectroscopic program. Among the outstanding results that he achieved was the measurement of the rate of expansion of the Orion Nebula together with proof that it is located within the Milky Way Galaxy.

      In 1891 Keeler became director of the Allegheny Observatory, where he performed his studies of Saturn's (Saturn) rings. Returning to the Lick Observatory as director in 1898, he undertook photographic observations of 120,000 galaxies with the recently acquired Crossley 36-inch (91-centimetre) reflecting telescope. This work established the reflecting telescope as the supreme instrument for photographing faint celestial objects and demonstrated that a spiral galaxy is the most common type of galaxy in the observable universe.

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Universalium. 2010.

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  • James Edward Keeler — James Edward Keeler. James Edward Keeler (10 septembre 1857 – 12 août 1900) était un astronome américain. Il travailla à l observatoire Lick à partir de 1888 mais fut nommé directeur de l observatoire Allegheny en 1891. Il retourna à l… …   Wikipédia en Français

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  • Keeler — may refer to:Places*Keeler, California, USA *Keeler Township, Michigan, USA *Keeler, Saskatchewan, Canada *Keeler (lunar crater), on the moonPeople with the surname Keeler*Christine Keeler, a British model and showgirl *Harry Stephen Keeler, an… …   Wikipedia

  • Keeler — ist der Familienname folgender Personen: Christine Keeler (1942), britisches Fotomodell (Profumo Affäre) James Edward Keeler (1857–1900), US amerikanischer Astrophysiker Ruby Keeler (1909–1993), US amerikanische Schauspielerin und Tänzerin… …   Deutsch Wikipedia

  • Keeler — puede hacer referencia a: Keeler, localidad de California. Keeler, cráter del planeta Marte. Keeler, cráter de La Luna. 2261 Keeler, asteroide. James Edward Keeler, astrónomo norteamericano (1857 1900). Esta página de desambiguación cataloga… …   Wikipedia Español

  • James Lyons Biggar — (February 4 1824 ndash; May 24 1879) was an Ontario merchant and political figure. He represented Northumberland East in the Canadian House of Commons from 1874 to 1878 as an Independent Liberal.He was born in Carrying Place, Upper Canada in 1824 …   Wikipedia

  • Keeler —   [ kiːlə], James, amerikanischer Astronom, * La Salle (Illinois) 10. 9. 1857, ✝ San Francisco (Calif.) 13. 8. 1900; ab 1898 Leiter des Lick Observatoriums auf dem Mount Hamilton (Calif.). Keeler fotografierte zahlreiche Galaxien und erkannte,… …   Universal-Lexikon

  • Keeler — (spr. kīler), James Edward, Astronom, geb. 10. Sept. 1857 in La Salle (Illinois), gest. 13. Aug. 1900 in San Francisco, studierte in Baltimore, Heidelberg und Berlin, wurde 1886 Assistent an der Lick Sternwarte, 1889 Direktor der Sternwarte in… …   Meyers Großes Konversations-Lexikon

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