Observation data Epoch J2000.0 Equinox J2000.0 (ICRS)
Constellation
Pisces
ζ Psc A
Right ascension
01h 13m 45.17477s[1]
Declination
+07° 34′ 31.2745″[1]
Apparent magnitude (V)
5.28[2]
ζ Psc B
Right ascension
01h 13m 43.88735s[1]
Declination
+07° 34′ 42.1765″[1]
Apparent magnitude (V)
6.43[2]
Characteristics
Spectral type
A7IV + A7IV + F7V + G7V + ?[2]
Astrometry
ζ Psc A
Proper motion (μ)
RA: +145.00[1] mas/yr Dec.: −55.69[1] mas/yr
Parallax (π)
18.76 ± 2.76 mas[1]
Distance
approx. 170 ly (approx. 53 pc)
Absolute magnitude (MV)
1.97[3]
ζ Psc B
Proper motion (μ)
RA: +181.78[1] mas/yr Dec.: −40.34[1] mas/yr
Details[4]
ζ Psc A
Mass
2.07±0.13M☉
Luminosity
27.4 L☉
Temperature
7,345 K
Rotational velocity (v sin i)
196 km/s
ζ Psc B
Metallicity [Fe/H]
0.18[3] dex
Other designations
Revati, ζ Psc, 86 Piscium, WDS J01137+0735
ζ Psc A: BD+06°174, FK5 1033, HD 7344, HIP 5737, HR 361, SAO 109739[5]
ζ Psc B: BD+06°175, HD 7345, HIP 5743, HR 362, SAO 109740[6]
Database references
SIMBAD
data
A
B
Zeta Piscium (ζ Piscium, abbreviated Zet Psc, ζ Psc) is a quintuple[2] star system in the zodiac constellation of Pisces. Based upon parallax measurements obtained during the Hipparcos mission, it is located roughly 170 light-years (52 parsecs) distant from the Sun.[1]
The system consists of a binary star (Zeta Piscium A) and a triple star system (BC), the latter consisting of a spectroscopic binary (B) and a single star (C). A's two components are themselves designated Zeta Piscium Aa (officially named Revati/ˈreɪvəti/)[7] and Ab; B's two components as Ba and Bb.
As the star system is 0.21° south of the ecliptic,[8] it can be eclipsed (occulted) by the moon, when close to or at one of its two nodes of its orbit;[9] and is eclipsed by the sun from about 8-10 April.[10]
^ abcdefghijCite error: The named reference vanLeeuwen2007 was invoked but never defined (see the help page).
^ abcdCite error: The named reference Eggleton2008 was invoked but never defined (see the help page).
^ abCite error: The named reference Anderson2012 was invoked but never defined (see the help page).
^Cite error: The named reference Zorec2012 was invoked but never defined (see the help page).
^Cite error: The named reference SIMBAD1 was invoked but never defined (see the help page).
^Cite error: The named reference SIMBAD2 was invoked but never defined (see the help page).
^"Naming Stars". IAU.org. Retrieved 16 December 2017.
^Cite error: The named reference pratt was invoked but never defined (see the help page).
^Cite error: The named reference Meyer1995 was invoked but never defined (see the help page).
^In the Sky Earth astronomy reference utility showing the ecliptic and relevant date as at J2000 - present.
ZetaPiscium (ζ Piscium, abbreviated Zet Psc, ζ Psc) is a quintuple star system in the zodiac constellation of Pisces. Based upon parallax measurements...
Alpha Piscium, Delta Piscium, Epsilon Piscium, ZetaPiscium, Mu Piscium, Nu Piscium and Xi Piscium. Consequently, the Chinese name for Alpha Piscium itself...
the Earth (i.e an arc of the ecliptic). Starting in the vicinity of ZetaPiscium (IAST: revatī), the twelve (i.e. 360° divided by 30°) rāśi are designated...
is itself a close pair. Regulus, along with five slightly dimmer stars (Zeta Leonis, Mu Leonis, Gamma Leonis, Epsilon Leonis, and Eta Leonis) have collectively...
55 Zeta Centauri Binary star system 2.56 Zeta Ophiuchi Star Maximum brightness 2.57 Alpha Leporis Star 2.58 Gamma Corvi Binary star system 2.59 Zeta Sagittarii...
Chandrasekhar, T.; Ashok, N. M. (1995). "Angular Diameter of Carbon Star Tx-Piscium from Lunar Occultation Observations in the Near Infrared". Journal of Astrophysics...
observations of the selected Algol-type binaries - IV. V799 Cassiopeiae, BX Piscium and HD 172189". Monthly Notices of the Royal Astronomical Society. 392...