Epoch J2000.0 Equinox J2000.0
|Right ascension||01h 41m 25.8943s|
|Declination||+5° 29' 15.408"|
|Apparent magnitude (V)||4.448|
|U−B color index||+1.56|
|B−V color index||+1.36|
|Radial velocity (Rv)||0.4 km/s|
|Proper motion (μ)||RA: -22.73 mas/yr
Dec.: 3.61 mas/yr
|Parallax (π)||8.86 ± 0.77 mas|
|Distance||370 ± 30 ly
(113 ± 10 pc)
|Radius||34 ± 3 R☉|
Nu Piscium (Nu Psc, ν Piscium, ν Psc) is a star approximately 368 light years away from Earth, in the constellation Pisces. It is an orange star of the spectral type K3IIIb, meaning it possesses a surface temperature between 3,500 and 5,000 kelvins. It is a giant star, cooler in surface temperature than our Sun, yet larger and brighter.
Nu Piscium was a latter designation of 51 Ceti.
In Chinese, 外屏 (Wài Píng), meaning Outer Fence, refers to an asterism consisting of refers to an asterism consisting of ν Piscium, δ Piscium, ε Piscium, ζ Piscium, μ Piscium, ξ Piscium and α Piscium. Consequently, ν Piscium itself is known as 外屏五 (Wài Píng wu, English: the Fifth Star of Outer Fence.)
- Gondoin, P. (December 1999), "Evolution of X-ray activity and rotation on G-K giants", Astronomy and Astrophysics 352: 217–227, Bibcode:1999A&A...352..217G
- Nordgren, Tyler E. et al. (December 1999), "Stellar Angular Diameters of Late-Type Giants and Supergiants Measured with the Navy Prototype Optical Interferometer", The Astronomical Journal 118 (6): 3032–3038, Bibcode:1999AJ....118.3032N, doi:10.1086/301114
- "Simbad Query Result". Simbad. Retrieved September 30, 2007.
- "Hipparcos Star Catalog Entry". Retrieved October 1, 2007.
- Wagman, M. (August 1987). "Flamsteed's Missing Stars". Journal for the History of Astronomy, Vol.18, NO. 3/AUG, P.209, 1987 18: 215. Bibcode:1987JHA....18..209W.
- (Chinese) AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 5 月 19 日