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Hadar(hā`där), variant of HadadHadad
, in the Bible. 1 Son of Ishmael. An alternate form is Hadar. 2 King of Edom. 3 Last king of Edom. Hadar is an alternate form. 4 Scion of the kings of Edom, who escaped Joab's massacre. He fled to Egypt and married the pharaoh's sister-in-law.
..... Click the link for more information. (1,) (3.)
Beta Centauri(bā`tə sĕntôr`ē), bright star in the constellation CentaurusCentaurus
, southern constellation located N and E of Crux, the Southern Cross. It is known especially for its bright stars Alpha Centauri and Hadar. It also contains Centaurus A, a radio galaxy, as well as a globular star cluster visible to the naked eye.
..... Click the link for more information. ; 1992 position R.A. 14h01.7m, dec. −60°13'. 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. B1 II, it has an 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 0.63, making it one of the 10 brightest stars in the sky. Its distance from the earth is more than 400 light-years. Hadar is a visual binary starbinary star
or binary system,
pair of stars that are held together by their mutual gravitational attraction and revolve about their common center of mass. In 1650 Riccioli made the first binary system discovery, that of the middle star in the Big Dipper's handle, Zeta
..... Click the link for more information. .
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Hadar(hay -dar) See Beta Centauri.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.