| absmag_v = −1.13[11]
}}{{Starbox detail
| source = [12]
| mass = {{Val|3.17|0.23}}
| radius = {{Val|20.65|0.57}}
| luminosity = {{Val|209.2|10.5}}
| temperature = {{Val|4835|28|fmt=commas}}
| gravity = {{Val|2.33|0.05}}
| metal_fe = {{Val|−0.15|0.10}}
| rotational_velocity = 10[13]
| age_myr = {{Val|380|100}}
}}{{Starbox catalog
| names = {{odlist | B=χ Psc | F=84 Piscium | FK5=1032 | BD=+20° 172 | HD=7087 | HIP=5571 | HR=351 | SAO=74544 }}[14]
}}{{Starbox reference
| Simbad = chi+Psc
}}{{Starbox end}}Chi Piscium (χ Piscium) is a solitary,[15] orange-hued star in the zodiac constellation of Pisces. It can be seen with the naked eye, having an apparent visual magnitude of +4.64.[3] Based upon an annual parallax shift of 8.50 mas as seen from Earth,[ it is located about 384 light years from the Sun.]
This is an evolved G-type giant star with a stellar classification of G8.5 III.[4] There is a 94%[12] chance that it is on the horizontal branch and is a red clump star,[20] which means it is generating energy through helium fusion at its core. Chi Piscium is estimated to have 3.17 times the mass of the Sun, nearly 21 times the solar radius, and shines with 209 times the Sun's luminosity. It is around 380 million years old.[12]
Naming
In Chinese, {{lang|zh|奎宿}} ({{lang|zh-Latn|Kuí Sù}}), meaning Legs (asterism), refers to an asterism consisting of χ 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, υ Piscium, φ Piscium and ψ¹ Piscium. Consequently, χ Piscium itself is known as {{lang|zh|奎宿十五}} ({{lang|zh-Latn|Kuí Sù shíwǔ}}, {{lang-en|the Fifteenth Star of Legs}}.)[1]
References
1. ^{{zh icon}} AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 5 月 19 日
2. ^1 {{citation | last1=Valentini | first1=M. | last2=Munari | first2=U. | title=A spectroscopic survey of faint, high-Galactic-latitude red clump stars. I. The high resolution sample | journal=Astronomy and Astrophysics | volume=522 | page=A79 | date=November 2010 | doi=10.1051/0004-6361/201014870 | bibcode=2010A&A...522A..79V | postscript=. | arxiv=1007.0207 }}
3. ^1 {{citation | last1=de Bruijne | first1=J. H. J. | last2=Eilers | first2=A.-C. | title=Radial velocities for the HIPPARCOS-Gaia Hundred-Thousand-Proper-Motion project | journal=Astronomy & Astrophysics | volume=546 | id=A61 | pages=14 | date=October 2012 | doi=10.1051/0004-6361/201219219 | bibcode=2012A&A...546A..61D | arxiv=1208.3048 | postscript=. }}
4. ^1 2 3 {{citation | display-authors=1 | last1=Reffert | first1=Sabine | last2=Bergmann | first2=Christoph | last3=Quirrenbach | first3=Andreas | last4=Trifonov | first4=Trifon | last5=Künstler | first5=Andreas | title=Precise radial velocities of giant stars. VII. Occurrence rate of giant extrasolar planets as a function of mass and metallicity | journal=Astronomy & Astrophysics | volume=574 | pages=A116 | year=2015 | doi=10.1051/0004-6361/201322360 | bibcode=2015A&A...574A.116R | arxiv=1412.4634 | postscript=. }} Values are for the slightly higher probability horizontal branch model fit.
5. ^1 2 3 4 {{citation | last1=Argue | first1=A. N. | postscript=. | title=UBV photometry of 550 F, G and K type stars | journal=Monthly Notices of the Royal Astronomical Society | volume=133 | pages=475–493 | year=1966 | bibcode=1966MNRAS.133..475A | doi=10.1093/mnras/133.4.475 }}
6. ^1 2 {{cite journal | last1=Keenan | first1=Philip C. | last2=McNeil | first2=Raymond C. | title=The Perkins catalog of revised MK types for the cooler stars | journal=Astrophysical Journal Supplement Series | volume=71 | pages=245 | year=1989 | postscript=. | bibcode=1989ApJS...71..245K | doi=10.1086/191373 }}
7. ^1 {{citation | last1=Bernacca | first1=P. L. | last2=Perinotto | first2=M. | title=A catalogue of stellar rotational velocities | journal=Contributi Osservatorio Astronomico di Padova in Asiago | volume=239 | issue=1 | year=1970 | bibcode=1970CoAsi.239....1B | postscript=. }}
8. ^1 {{citation | last1=Eggleton | first1=P. P. | last2=Tokovinin | first2=A. A. | title=A catalogue of multiplicity among bright stellar systems | journal=Monthly Notices of the Royal Astronomical Society | volume=389 | issue=2 | pages=869–879 | date=September 2008 | bibcode=2008MNRAS.389..869E | doi=10.1111/j.1365-2966.2008.13596.x | arxiv=0806.2878 | postscript=. }}
9. ^1 {{citation | last1=Takeda | first1=Yoichi | last2=Sato | first2=Bun'ei | last3=Murata | first3=Daisuke | title=Stellar Parameters and Elemental Abundances of Late-G Giants | journal=Publications of the Astronomical Society of Japan | volume=60 | issue=4 | pages=781–802 | date=August 2008 | bibcode=2008PASJ...60..781T | arxiv=0805.2434 | doi=10.1093/pasj/60.4.781 | postscript=. }}
10. ^1 {{cite simbad | title=chi Psc | accessdate=2017-07-23 | postscript=. }}