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Libra (constellation)




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Libra
Libra
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List of stars in Libra
Abbreviation: Lib
Genitive: Librae
Symbology: the Scale
Right ascension: 15 h
Declination: −15°
Area: 538 sq. deg. (29th)
Main stars: 4, 6
Bayer/Flamsteed stars: 46
Stars known to have planets: 3
Bright stars: 2
Nearby stars: 2
Brightest star: Zubeneschamali (β Lib) (2.6m)
Nearest star: HD 131977 (19.3 ly)
Messier objects: 0
Meteor showers: May Librids
Bordering constellations: Serpens Caput
Virgo
Hydra
Centaurus (corner)
Lupus
Scorpius
Ophiuchus
Visible at latitudes between +65° and −90°
Best visible at 21:00 (9 p.m.) during the month of June


Libra (pronounced /ˈliːbrə/, Latin: weighing scale, symbol Libra.svg, Unicode ) is a constellation of the zodiac. It lies between Virgo to the west and Scorpius to the east. It once represented the claws of Scorpius.

Some features

The brightest stars in Libra form a rectangle:

α and β Librae are the scales' balance beam, and γ and σ are the weighing pans.

σ Librae was formerly known as γ Scorpii even though it is well inside the boundaries of Libra. It was not renamed as σ Librae until 1851 (by Benjamin A. Gould).