Del

Variable star

Its story

Delta Librae is one of the best-known eclipsing binaries in the sky: every little more than two days, an unseen companion passes in front of it and visibly dims its light. At some 294 light-years, its primary is a blue-white B-type star, young and hot. It sits in Libra, that stretch of the zodiac which in antiquity formed part of the Scorpion's claws.

Constellation: Libra
Apparent magnitude: 4.91
Distance: 293.6 light years
Coordinates (J2000): RA 225.243° · Dec -8.519°
Catalogue: HIP 73473 · HD 132742

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