Psi1 Piscium

Psi1 Piscium (Psi1 Psc, ψ1 Piscium, ψ1 Psc) is a binary star in the constellation Pisces. It is approximately 280 light years from Earth, based on its parallax.

The two components of Psi1 Piscium are both A-type main-sequence stars. The primary has an apparent magnitude of 5.273, while the secondary is slightly dimmer, with an apparent magnitude of 5.455. The primary itself is a close binary, with two A-type stars that orbit each other every 14.44 years.

Psi1 Piscium is moving through the Galaxy at a speed of 22.5 km/s relative to the Sun. Its projected Galactic orbit carries it between 22,800 and 24,300 light years from the center of the Galaxy.

Naming
In Chinese, 奎宿 (Kuí Sù), meaning Legs (asterism), refers to an asterism consisting of refers to an asterism consisting of ψ1 Piscium, η Andromedae, 65 Piscium, ζ Andromedae, ε Andromedae, δ Andromedae, π Andromedae, ν Andromedae, μ Andromedae, β Andromedae, τ Piscium, 91 Piscium, υ Piscium, φ Piscium and χ Piscium. Consequently, the Chinese name for ψ1 Piscium itself is 奎宿十六 (Kuí Sù shíliù, the Sixteenth Star of Legs.)