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radial velocity
(Encyclopedia)radial velocity, in astronomy, the speed with which a star moves toward or away from the sun. It is determined from the red or blue shift in the star's spectrum. ...Russell, Henry Norris
(Encyclopedia)Russell, Henry Norris, 1877–1957, American astronomer, b. Oyster Bay, N.Y., grad. Princeton, 1897. In 1902 he went to Cambridge, England, to study. He returned to Princeton in 1905, was professor of...cluster
(Encyclopedia)cluster, in astronomy: see star cluster; galaxy. ...gibbous phase
(Encyclopedia)gibbous phase gĭbˈəs [key]: see phase, in astronomy. ...Hoyle, Sir Fred
(Encyclopedia)Hoyle, Sir Fred hoil [key], 1915–2001, British astrophysicist and mathematician, b. Bingley, Yorkshire. During the years of World War II, Hoyle primarily worked on technical problems related to rada...Laurentian University
(Encyclopedia)Laurentian University, main campus at Sudbury, Ont., Canada; bilingual, coeducational; founded 1960. Among its faculties are those in astronomy, commerce, computer science, education, engineering, law...Umbriel
(Encyclopedia)Umbriel ŭmˈbrēĕlˌ [key], in astronomy, one of the moons, or natural satellites, of Uranus. ...Portia
(Encyclopedia)Portia pôrˈshə [key], in astronomy, one of the natural satellites, or moons, of Uranus. ...Phobos
(Encyclopedia)Phobos fōˈbŏs [key], in astronomy, innermost moon, or natural satellite, of Mars. ...Oberon
(Encyclopedia)Oberon ōˈbərŏnˌ [key], in astronomy, one of the moons, or natural satellites, of Uranus. ...Browse by Subject
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