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Bellatrix(bĕl`ətrĭks), bright star in the constellation OrionOrion,
in astronomy, constellation located on the celestial equator. It is one of the most conspicuous and easily recognizable constellations in the entire sky. From ancient times it has been mentioned in the literature of many peoples and is traditionally depicted as the figure
..... Click the link for more information. ; Bayer designation Gamma Orionis; 1992 position R.A. 5h24.7m, Dec. +6°21'. A bluish-white 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. B2 III, 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 1.63 makes it one of the 25 brightest stars in the sky. Its distance from the earth is about 500 light-years. Bellatrix marks the left shoulder of Orion. The name is Latin for "female warrior."
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Bellatrix(bel -ă-triks) (γ Ori) A remote luminous blue-white giant that is the third brightest star in the constellation Orion. mv : 1.64; Mv : –3.9; spectral type: B2 III; distance: 74 pc.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006
A bluish-white star of stellar magnitude 1.7, spectral classification B2-III, in the constellation Orion; the star γ Orionis.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.