Psi1 Piscium

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For other stars with this Bayer designation, see ψ Piscium.
Psi¹ Piscium
Diagram showing star positions and boundaries of the Pisces constellation and its surroundings
Cercle rouge 100%.svg

Location of ψ¹ Piscium (circled)
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Pisces
Right ascension 01h 05m 40.93s
Declination +21° 28' 23.6"
Apparent magnitude (V) +5.33
Distance 238 ly
(73 pc)
Spectral type A1Vn
Other designations
ψ¹ Piscium, ψ¹ Psc, Psi¹ Psc, 74 Piscium, BD+20°156, CCDM J01057+2128A, GC 1309, HD 6456, HIP 5131, HR 310, IDS 00434+0703 A, PPM 143916, SAO 74482, WDS J01057+2128Aa,Ab.

Psi¹ Piscium (Psi¹ Psc, ψ¹ Piscium, ψ¹ Psc) is binary star in constellation of Pisces, with an apparent magnitude of +5.33. The primary component is a white A-type main sequence. It is approximately 238 light years from Earth.

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.[1]


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, ψ¹ Piscium itself is known as 奎宿十六 (Kuí Sù shíliù, English: the Sixteenth Star of Legs.)[2]