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Pollux,Greek hero: see Castor and PolluxCastor and Pollux
, in classical mythology, twin heroes called the Dioscuri; Castor was the son of Leda and Tyndareus, Pollux the son of Leda and Zeus. They were brothers to Helen and Clytemnestra. Castor excelled as a horseman and Pollux as a boxer.
..... Click the link for more information. .
Pollux,brightest star in the constellation GeminiGemini
[Lat.,=the twins], northern constellation lying on the ecliptic (the sun's apparent path through the heavens) between Taurus and Cancer, N of Canis Minor; it is one of the constellations of the zodiac. Gemini is traditionally depicted as two men.
..... Click the link for more information. ; Bayer designation Beta Geminorum; 1992 position R.A. 7h44.8m, Dec. +28°03'. An orange giant of spectral classspectral 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.
..... Click the link for more information. K0 III, it is the nearest giant star, lying at a distance of 35 light-years. Its apparent magnitudemagnitude,
in astronomy, measure of the brightness of a star or other celestial object. The stars cataloged by Ptolemy (2d cent. A.D.), all visible with the unaided eye, were ranked on a brightness scale such that the brightest stars were of 1st magnitude and the dimmest stars
..... Click the link for more information. of 1.13 makes it one of the 20 brightest stars in the sky. Pollux is the brighter of the Twins, CastorCastor
, bright star in the constellation Gemini; Bayer designation α Geminorum; 1992 position R.A. 7h34.1m, Dec. +31°54'. Slightly dimmer than Pollux, with which it forms the Twins, Castor has an apparent magnitude of 1.
..... Click the link for more information. appearing about half as bright.
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Pollux(pol -ŭks) (β Gem) An orange giant that is the brightest star in the constellation Gemini and is the nearest giant to the Earth. It has several optical companions, none of which are physically related to it. mv : 1.14; Mv : 0.7; spectral type: K0 IIIb; distance: 12 pc.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006
A giant orange-yellow star with visual brightness of 1.16, a little less than 35 light-years from the sun, spectral classification K0-III, in the constellation Gemini; the star β Geminorum.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.