Keeler, James Edward

Keeler, James Edward,

1857–1900, American astronomer, b. La Salle, Ill. At the age of 21 he went on the Naval Observatory expedition to Colorado to observe the solar eclipse of July, 1878. In 1886 he became an assistant and in 1888 full astronomer at Lick Observatory, Mt. Hamilton, Calif. He was director of the Allegheny Observatory from 1891 to 1898. In the course of his examination of the spectra of the heavenly bodies, he furnished confirmation for James Clerk Maxwell's theory that the rings of Saturn are composed of meteoric particles. In 1898, Keeler returned to Lick Observatory as director, and there, working with the Crossley reflector, he observed and photographed large numbers of nebulae whose existence had never before been suspected. He contributed memoirs to the Royal Astronomical Society of England and many papers to the Astrophysical Journal, of which he was coeditor. He wrote Spectroscopic Observations of Nebulae (1894).

Keeler, James Edward

(1857–1900) astronomer; born in La Salle, Ill. He directed the Allegheny Observatory (1891–98) and the Lick Observatory from 1898. He established that Saturn's rings consist of meteoric particles and he carried out important spectroscopic work on 120,000 nebulae.

单词	keeler, james edward
释义	Keeler, James Edward Keeler, James Edward, 1857–1900, American astronomer, b. La Salle, Ill. At the age of 21 he went on the Naval Observatory expedition to Colorado to observe the solar eclipse of July, 1878. In 1886 he became an assistant and in 1888 full astronomer at Lick Observatory, Mt. Hamilton, Calif. He was director of the Allegheny Observatory from 1891 to 1898. In the course of his examination of the spectra of the heavenly bodies, he furnished confirmation for James Clerk Maxwell's theory that the rings of Saturn are composed of meteoric particles. In 1898, Keeler returned to Lick Observatory as director, and there, working with the Crossley reflector, he observed and photographed large numbers of nebulae whose existence had never before been suspected. He contributed memoirs to the Royal Astronomical Society of England and many papers to the Astrophysical Journal, of which he was coeditor. He wrote Spectroscopic Observations of Nebulae (1894). Keeler, James Edward (1857–1900) astronomer; born in La Salle, Ill. He directed the Allegheny Observatory (1891–98) and the Lick Observatory from 1898. He established that Saturn's rings consist of meteoric particles and he carried out important spectroscopic work on 120,000 nebulae.
随便看	molecular and organismic research in plant history molecular and quantum acoustics molecular and structural biology molecular anthropology molecular assembler molecular association molecular asymmetry molecular attraction molecular autopsy molecular bacteriology and immunology group molecular basis of disease molecular beacon molecular beam molecular-beam apparatus molecular beam deposition molecular beam electron resonance molecular beam epitaxy molecular-beam epitaxy molecular beam mass spectrometer molecular beams molecular beams and dynamics group molecular behavior molecular bifurcation communicator molecular binding molecular biological