Regulus

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Regulus

, in Roman history
Regulus (Marcus Atilius Regulus) (rĕgˈyo͝oləs), d. c.250 B.C., Roman general in the First Punic War. While consul (267 B.C.) he conquered the Sallentini and captured Brundisium (now Brindisi). He became consul a second time (256), defeated the Carthaginians at sea, and waged war against them in Africa, at first with success. Soon afterward the Carthaginians won a complete victory and captured (255) Regulus. He was sent on parole to solicit peace from the Romans, but instead he advised the senate against accepting the Punic terms or exchanging prisoners. Resisting persuasions to break his parole, he returned to Carthage, where he was supposedly tortured to death. The story made Regulus famous as a Roman patriot-martyr.

Regulus

, in astronomy
Regulus (rĕgˈyələs), 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 V, its apparent magnitude of 1.35 makes it one of the 25 brightest stars in the sky. Its distance from the earth is about 85 light-years. Regulus is a visual triple star. Its name is Latin for “prince.”
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Regulus

(reg -yŭ-lŭs) (α Leo) A bluish-white star that is the brightest one in the constellation Leo and lies at the base of the Sickle of Leo. It is a visual triple star, with the bright Regulus A being accompanied by an orange companion (B) orbiting A once every 130 000 years at a distance of more than 4000 AU. B itself has a 13th-magnitude red dwarf companion (C). The Regulus system has a common proper motion with a fourth star (D). mv : 1.4 (A), 7.7 (B); Mv : –0.3; spectral type: B7 V (A), K1 V (B); distance: 21 pc.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006

regulus

[′reg·yə·ləs]
(metallurgy)
Impure metal formed beneath the slag during smelting or reduction of ores.

Regulus

[′reg·yə·ləs]
(astronomy)
A star of stellar magnitude 1.34, about 67 light-years from the sun, spectral classification B8, in the constellation Leo; the star α Leonis. Also known as Little Ruler.
(ordnance)
A United States surface-to-surface, jet-powered guided missile; it is equipped with a nuclear warhead, and launched from a surfaced submarine or a cruiser.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

Regulus

Marcus Atilius . died ?250 bc, Roman general; consul (267; 256). Captured by the Carthaginians in the First Punic War, he was sent to Rome on parole to deliver the enemy's peace terms, advised the Senate to refuse them, and was tortured to death on his return to Carthage
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005