Columbia Encyclopedia

(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. ...

(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...

(Encyclopedia) cluster, in astronomy: see star cluster; galaxy. ...

(Encyclopedia) gibbous phase gĭbˈəs [key]: see phase, in astronomy. ...

(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...

(Encyclopedia) Oberon ōˈbərŏnˌ [key], in astronomy, one of the moons, or natural satellites, of Uranus. ...

(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...

(Encyclopedia) Phobos fōˈbŏs [key], in astronomy, innermost moon, or natural satellite, of Mars. ...

(Encyclopedia) Sycorax sĭkˈərăksˌ [key], in astronomy, one of the natural satellites, or moons, of Uranus. ...

(Encyclopedia) Umbriel ŭmˈbrēĕlˌ [key], in astronomy, one of the moons, or natural satellites, of Uranus. ...