Libra

LibraLibra, illumination from a Book of Hours, Italian, c. 1475; in the Pierpont Morgan Library, New York City (MS. G.14)

Libra, in astronomy, zodiacal constellation in the southern sky lying between Scorpius and Virgo, at about 15 hours 30 minutes right ascension and 15° south declination. Its stars are faint; the brightest star, Zubeneschamali (Arabic for “northern claw,” as it was earlier regarded as part of Scorpius; also called Beta Librae), has a magnitude of 2.6.

In astrology, Libra is the seventh sign of the zodiac, considered as governing the period from about September 22 to about October 23. It is represented by a woman (sometimes identified with Astraea, the Roman goddess of justice), holding a balance scale or by the balance alone.

The Editors of Encyclopaedia BritannicaThis article was most recently revised and updated by Mindy Johnston.