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Chi Lupi is a spectroscopic binary star in the constellation of Lupus. It has an apparent visual magnitude of approximately 3.957. The primary star in the binary is a mercury-manganese star of spectral type B9.5V; the secondary is a metallic-lined star of type A2Vm.
This system is a proper motion member of the Upper Scorpius sub-group in theScorpius–Centaurus OB association,the nearest such co-moving association of massive stars to the Sun.The Upper Scorpius subgroup contains thousands of stars with an average age of 11 million years old at mean distances of 145 parsecs.
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