Psi1 Piscium

Psi¹ Piscium

Location of ψ¹ Piscium (circled)

Observation data Epoch J2000.0      Equinox J2000.0
Constellation	Pisces
Right ascension	01^h 05^m 40.93^s
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]

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

References

1. Psi-1 Piscium A (HIP 5131)
2. (Chinese) AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 5 月 19 日