Magnitude 4.96 Apparent magnitude (V) 4.96 | Constellation Scorpius | |
People also search for Chi Scorpii, Omicron Scorpii, HD 146624 | ||
Psi Scorpii (ψ Sco, ψ Scorpii) is a star in the zodiac constellation of Scorpius. It has an apparent visual magnitude of 4.96, which is bright enough to be faintly visible to the naked eye. Based upon parallax measurements, it is around 160 light years from the Sun. Data collected during the Hipparcos mission suggests it is an astrometric binary, although nothing is known about the companion.
This is a white-hued A-type subgiant star with a stellar classification of A3 IV. It has around twice the mass and 2.2 times the radius of the Sun, and is shining with 18.6 times the Sun's luminosity. The effective temperature of the star's outer atmosphere is 8,846 K. Psi Scorpii is around 451 million years old and is spinning with a projected rotational velocity of 42.3 km/s.