Luminosity (bolometric) 3,432 L☉ Constellation Scorpius Eccentricity 0.27 | Magnitude 3.86 Apparent magnitude (V) 3.86 | |
Similar Pi Scorpii, Mu1 Scorpii, Xi Scorpii, Epsilon Scorpii | ||
Rho Scorpii (ρ Sco, ρ Scorpii) is a binary star in the constellation Scorpius. It has an apparent visual magnitude of +3.87, which is bright enough to be seen with the naked eye. Based upon parallax measurements, it is located approximately 472 light years from the Sun. At that distance, the visual magnitude of the star is reduced by 0.07 due to extinction from interstellar dust.
The primary component A is a single-lined spectroscopic binary with an orbital period of 4 days and an eccentricity of 0.27. This pair displays the spectrum of blue-white B-type subgiant with a stellar classification of B2 IV. It has an estimated mass nearly 8 times that of the Sun and shines with 3,432 times the Sun's luminosity. A third star, component B, is a magnitude 12.80 visual companion that lies at an angular separation of 38.40 arcseconds along a position angle of 95°, as of the year 2000.
Rho Scorpii is a member of the Upper Scorpius OB association.