Back Heze AST Zeta de la Verge Catalan Zeta Virginis German Heze Spanish زتا دوشیزه Persian Zeta Virginis French Zeta Virginis Italian おとめ座ゼータ星 Japanese 헤제 Korean Heze (Stär) LB

Zeta Virginis

ζ Virginis
(incl. Heze)
Location of ζ Virginis (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Virgo
Right ascension 13h 34m 41.591s[1]
Declination –00° 35′ 44.95″[1]
Apparent magnitude (V) +3.376[2]
Characteristics
Spectral type A3 V[3]
U−B color index +0.141[2]
B−V color index +0.114[2]
Astrometry
Radial velocity (Rv)–13.2[2] km/s
Proper motion (μ) RA: –280.48 ± 0.17[1] mas/yr
Dec.: +49.05 ± 0.12[1] mas/yr
Parallax (π)44.03 ± 0.19 mas[1]
Distance74.1 ± 0.3 ly
(22.71 ± 0.10 pc)
Absolute magnitude (MV)1.64±0.05[4]
Details
ζ Vir A
Mass2.041±0.024[4] M☉
Radius2.079±0.025[5] R☉
Luminosity17.885±0.252[5] L☉
Surface gravity (log g)4.12 cgs
Temperature8247±52[5] K
Rotational velocity (v sin i)222[6] km/s
Age0.51[7] Gyr
ζ Vir B
Mass0.168+0.012
−0.016[4] M☉
Other designations
Heze (primary), 79 Virginis, BD+00°3076, FK5 501, GJ 3792, HD 118098, HIP 66249, HR 5107, SAO 139420, WDS J13347-0036, NT3, NGCA-V98
Database references
SIMBADdata

Zeta Virginis (ζ Virginis, abbreviated Zeta Vir, ζ Vir) is a binary star in the zodiac constellation of Virgo. It is visible to the naked eye with an apparent visual magnitude of +3.376 and is located about a half degree south of the celestial equator. Based on parallax measurements obtained during the Hipparcos mission, it is about 74 light-years (23 parsecs) distant from the Sun.

The two components are designated Zeta Virginis A (officially named Heze /ˈhiːziː/, a mid-20th-century name for the system)[8][9] and B.

  1. ^ a b c d e Cite error: The named reference van Leeuwen2007 was invoked but never defined (see the help page).
  2. ^ a b c d Cite error: The named reference Hip_Heze was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference Alcyone was invoked but never defined (see the help page).
  4. ^ a b c Cite error: The named reference apj712_1_421 was invoked but never defined (see the help page).
  5. ^ a b c Cite error: The named reference kalerAC was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference aaa463_2_671 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference apj653_1_675 was invoked but never defined (see the help page).
  8. ^ Kunitzsch, Paul; Smart, Tim (2006). A Dictionary of Modern star Names: A Short Guide to 254 Star Names and Their Derivations (2nd rev. ed.). Cambridge, Massachusetts: Sky Pub. ISBN 978-1-931559-44-7.
  9. ^ "Naming Stars". IAU.org. Retrieved 18 June 2018.

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