Observation data Epoch J2000.0 Equinox J2000.0 (ICRS)
Constellation
Pisces
Right ascension
01h 45m 23.63185s[1]
Declination
+09° 09′ 27.8530″[1]
Apparent magnitude (V)
4.60[2]
Characteristics
Spectral type
K0 III[3]
U−B color index
+0.74[2]
B−V color index
+0.95[2]
Astrometry
Radial velocity (Rv)
+26.13[3] km/s
Proper motion (μ)
RA: +72.98[1] mas/yr Dec.: +39.30[1] mas/yr
Parallax (π)
11.67 ± 0.67 mas[1]
Distance
280 ± 20 ly (86 ± 5 pc)
Absolute magnitude (MV)
+0.78[4]
Orbit[5]
Period (P)
1672.4±1.4 d
Eccentricity (e)
0.18±0.03
Periastron epoch (T)
2437651 ± 40 JD
Argument of periastron (ω) (secondary)
71±9°
Semi-amplitude (K1) (primary)
4.64±0.14 km/s
Details
ξ Psc A
Mass
2.00[3]M☉
Radius
9[6]R☉
Luminosity
45.7[3]L☉
Surface gravity (log g)
2.8[6] cgs
Temperature
4,947±25[3] K
Metallicity [Fe/H]
−0.11[6] dex
Rotational velocity (v sin i)
0.0[6] km/s
Age
1.22[3] Gyr
Other designations
ξ Psc, ξ Psc, 111 Piscium, BD+02° 290, FK5 65, HD 11559, HIP 8833, HR 549, SAO 110206, WDS J02020+246AB[7]
Database references
SIMBAD
data
Xi Piscium (ξ Piscium) is an orange-hued binary star[8] system in the zodiac constellation of Pisces. In 1690, the astronomer Johannes Hevelius in his Firmamentum Sobiescianum regarded the constellation Pisces as being composed of four subdivisions. Xi Piscium was considered to be part of the Linum Austrinum, the South Cord.[9] The star is visible to the naked eye, having an apparent visual magnitude of 4.60.[2] Based upon an annual parallax shift of 11.67 mas as seen from Earth,[1] it is located about 280 light years from the Sun. It is moving away from the Sun, having a radial velocity of +26 km/s.[3]
This is a single-lined spectroscopic binary system with an orbital period of 4.6 years and an eccentricity of around 0.18.[5] The spectroscopic binary nature of this star was discovered in 1901 by William Wallace Campbell using the Mills spectrograph at the Lick Observatory.[10] The visible component is an evolved K-type giant star with a stellar classification of K0 III.[3] It is a red clump star, which indicates it is generating energy through helium fusion at its core.[11]
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^ abcdCite error: The named reference Massarotti2008 was invoked but never defined (see the help page).
^Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
^Cite error: The named reference Griffin1981 was invoked but never defined (see the help page).
^Cite error: The named reference Hevelius was invoked but never defined (see the help page).
^Cite error: The named reference Campbell1901 was invoked but never defined (see the help page).
^Cite error: The named reference Tautvaisiene2010 was invoked but never defined (see the help page).
XiPiscium (ξ Piscium) is an orange-hued binary star system in the zodiac constellation of Pisces. In 1690, the astronomer Johannes Hevelius in his Firmamentum...
Alpha Piscium, Delta Piscium, Epsilon Piscium, Zeta Piscium, Mu Piscium, Nu Piscium and XiPiscium. Consequently, the Chinese name for Alpha Piscium itself...
Zeta Piscium, Delta Piscium, Epsilon Piscium, Mu Piscium, Nu Piscium, XiPiscium and Alpha Piscium. Consequently, the Chinese name for Zeta Piscium itself...
1093/mnras/sty280. Griffin, R. F.; Herbig, G. H. (1981). "Spectroscopic Orbits of XiPiscium 60 Andromedae and ξ1 Ceti". Monthly Notices of the Royal Astronomical...
DV Piscium is a triple star system in the equatorial constellation of Pisces, abbreviated DV Psc. It is an eclipsing binary variable of the RS Canum Venaticorum...
system 3.61 HD 63032 Binary star system 3.62 Delta Arae Star 3.620 Eta Piscium Binary star system 3.63 3.55 Omicron Velorum Star 3.63 Beta Delphini Binary...
also included the most important church of the rione, Sant'Angelo in Foro Piscium ("St. Angel in the Fish Market"). This church, erected in 770 inside the...
1650). /ælˈfɛkə/ Andromeda α Andromedae Aa Alpheratz /ælˈfɪəræts/ Pisces η Piscium A Alpherg /ˈælfɜːrɡ/ Draco μ Draconis A Alrakis From Arabic: الراقص ar-rāqiṣ...
Juliette (9 January 2024), "TESS Hunt for Young and Maturing Exoplanets (THYME) XI: An Earth-sized Planet Orbiting a Nearby, Solar-like Host in the 400Myr Ursa...
observations of the selected Algol-type binaries - IV. V799 Cassiopeiae, BX Piscium and HD 172189". Monthly Notices of the Royal Astronomical Society. 392...
of various animals published under the title Venationes Ferarum, Avium, Piscium. While some of the hunts in the last series are depicted in a relatively...
120 Epsilon Indi Ba 55,656 LHS 6343 C 55,978 Epsilon Indi Bb 57,050 54 Piscium B 57,050 2MASS J1126−5003 57,193.5 UGPS J0521+3640 57,193.5 Wolf 1130 C...
Rondeletio. [pp. 519–522] In: Historiæ Animalium: Liber IIII. Qui est de Piscium & Aquatilium animantium natura. Cum Iconibus singulorum ad viuum expressis...
plasma injector named PI3, the world's largest. Astronomers report that RZ Piscium, a star that brightens and dims in a highly erratic manner, is associated...
3847/0004-637X/819/1/85, S2CID 56307453 "SOPHIE velocimetry of Kepler transit candidates XI. Kepler-412 system: probing the properties of a new inflated hot Jupiter"...
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