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Rho Scorpii, 5 Scorpii

Proper NameIklil
Bayer DesignationRho Scorpii
Flamsteed Number5 Scorpii
HR (BSC)5928
Right Ascension15h 56m 53s
Declination-29° 12' 51"
Distance472 light years
145 parsecs
MagnitudeApparent: +3.9
Absolute: -1.9
Spectral ClassB2IV-V blue subgiant
Optimum VisibilityJune
NotesRho Scorpii is a multiple system with two main component stars designated Rho Scorpii A and Rho Scorpii B, and Rho Scorpii A is itself a spectroscopic binary. The 'A' component therefore has two subcomponent stars, designated 'Aa' and 'Ab'. It is to Rho Scorpii Aa that the proper name Iklil is formally applied.