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Perseus, in astronomy

(Encyclopedia)Perseus, in astronomy, northern constellation lying E of Cassiopeia and N of Taurus. It contains the bright star Mirfak (Alpha Persei) and Algol (Beta Persei), a visible variable star of the type know...

Algol, in astronomy

(Encyclopedia)Algol ălˈgŏl [key], famous variable star in the constellation Perseus; Bayer designation β Persei; 1992 position R.A. 3h07.7m, Dec. +40°55′. Algol's variation in apparent magnitude, from 2.06 t...

transit instrument

(Encyclopedia)transit instrument or transit, telescope devised to observe stars as they cross the meridian and used for determining time. Its viewing tube swings on a rigid horizontal axis restricting its movements...

equatorial coordinate system

(Encyclopedia)CE5 Equatorial coordinate system equatorial coordinate system, the most commonly used astronomical coordinate system for indicating the positions of stars or other celestial objects on the celesti...

Lucifer

(Encyclopedia)Lucifer lo͞oˈsĭfər [key] [Lat.,=light-bearing], in Christian tradition a name for Satan. In the Vulgate, Lucifer served as a translation of the Hebrew epithet meaning “Day Star,” a name associ...

spectral class

(Encyclopedia)CE5 spectral class, in astronomy, a classification of the stars by their spectrum and luminosity. In 1885, E. C. Pickering began the first extensive attempt to classify the stars spectroscopically....

Shaula

(Encyclopedia)Shaula, bright star in the constellation Scorpius; Bayer designation Lambda Scorpii; 1992 position R.A. 17h33.7m, Dec. −37°06′. A bluish-white star of spectral class B1 V, its apparent magnitude ...

Regulus, in astronomy

(Encyclopedia)Regulus rĕgˈyələs [key], brightest star in the constellation Leo; Bayer designation Alpha Leonis; 1992 position R.A. 10h08m, Dec. +12°00′. A bluish-white main-sequence star of spectral class B7...

Ball, Lucille

(Encyclopedia)Ball, Lucille, 1911–89, American actress and producer, b. Celoron, N.Y. At first promoted by Hollywood as another glamorous movie star, Ball was often cast as a spunky sidekick in second features. I...

Burne-Jones, Sir Edward

(Encyclopedia)Burne-Jones, Sir Edward, 1833–98. English painter and decorator, b. Birmingham. Expected to enter the Church, he went to Exeter College, Oxford, where he met William Morris, who became his lifelong ...