Epoch J2000.0 Equinox J2000.0
|Right ascension||01h 19m 27.9951s|
|Declination||+27° 15' 50.611"|
|Apparent magnitude (V)||4.752|
|U−B color index||+0.10|
|B−V color index||+0.03|
|Radial velocity (Rv)||8.0 km/s|
|Proper motion (μ)||RA: 26.21 mas/yr
Dec.: -11.62 mas/yr
|Parallax (π)||10.49 ± 0.77 mas|
|Distance||310 ± 20 ly
(95 ± 7 pc)
Upsilon Piscium (Upsilon Psc, υ Piscium, υ Psc) is a star approximately 310 light years away from Earth, in the constellation Pisces. It is bluish-white star of the spectral type A3V. It has a surface temperature of 7,500 to 11,000 kelvins, and is approximately the same size as our Sun, yet is much hotter and brighter. It has a rotational velocity of 93 kilometers per second at the equator.
In Chinese, 奎宿 (Kuí Sù), meaning Legs (asterism), refers to an asterism consisting of refers to an asterism consisting of υ Piscium, η Andromedae, 65 Piscium, ζ Andromedae, ε Andromedae, δ Andromedae, π Andromedae, ν Andromedae, μ Andromedae, β Andromedae, σ Piscium, τ Piscium, 91 Piscium, φ Piscium, χ Piscium and ψ¹ Piscium. Consequently, υ Piscium itself is known as 奎宿十三 (Kuí Sù shí sān, English: the Thirteenth Star of Legs.)
- "Simbad Query Result". Simbad. Retrieved October 1, 2007.
- ""upsilon Piscium"". Retrieved October 1, 2007.
- (Chinese) AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 5 月 19 日