Beta Virginis

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Template:Short description Template:Sky

β Virginis
(Zavijava)
Template:Location mark
Location of β Virginis (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Virgo
Right ascension Template:RA[1]
Declination Template:DEC[1]
Apparent magnitude (V) 3.604[2]
Characteristics
Evolutionary stage Main sequence[3] turnoff[4]
Spectral type F9 V[5]
U−B Template:Engvar +0.090[2]
B−V Template:Engvar +0.553[2]
Astrometry
Radial velocity (Rv)+4.1[6] km/s
Proper motion (μ) RA: +740.23[1] mas/yr
Dec.: −270.43[1] mas/yr
Parallax (π)91.50±0.22 mas[1]
DistanceTemplate:Rnd ± Template:Rnd ly
(Template:Rnd ± Template:Rnd pc)
Absolute magnitude (MV)3.41[6]
Details
MassScript error: No such module "val".[3] Template:Solar mass
RadiusScript error: No such module "val".[7] Template:Solar radius
LuminosityScript error: No such module "val".[7] Template:Solar luminosity
Habitable zone inner limit1.39[8] AU
Habitable zone outer limit3.25[8] AU
Surface gravity (log g)Script error: No such module "val".[3] cgs
TemperatureScript error: No such module "val".[7] K
Metallicity [Fe/H]0.20[9] dex
Rotational velocity (v sin i)4.3[10] km/s
Age2.9 ± 0.3,[6] ~3.3[4] Gyr
Metallicity [Fe/H]{{{metal_fe2}}} dex
Other designations
Template:Odlist[11]
Database references
SIMBADdata
ARICNSdata

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Beta Virginis, a name Latinised from β Virginis, is a star in the equatorial constellation of Virgo. It has the proper name Zavijava (Template:IPAc-en),[12][13][14] and, despite its designation 'beta', is the fifth-brightest star in Virgo with an apparent visual magnitude of 3.604.[2] The distance to this star is around 35.7 light-years based on parallax;[1] it is drifting further away with a radial velocity of +4.1 km/s.[6] It is 0.69 of a degree north of the ecliptic, so it can be occulted by the Moon and (rarely) by planets. The next planetary occultation of Beta Virginis will take place on 9 November 2210, by Venus;[15] although an occultation by the same planet might be visible on 11 August 2069 from the South Pole.[16]

Properties

This is an F-type main-sequence star with a stellar classification of F9 V,[5] which means it is generating energy through core hydrogen fusion. Sun-like oscillations have been detected in Beta Virginis, allowing its internal structure to be modeled in more detail.[17] It is around 2.9[6] to 3.3[4] billion years old with a projected rotational velocity of 4.3 km/s[10] and appears to be near the end of its main sequence lifetime.[3][4] Larger and more massive than the Sun, it is comparatively metal-rich (that is, it has a higher preponderance of elements heavier than helium).[9] It is radiating 3.6[7] times the luminosity of the Sun from its photosphere at an effective temperature of Script error: No such module "val"..[7]

According to Nelson & Angel (1998),[18] Beta Virginis could host two or three jovian planets in wide orbits. The authors have set an upper limit of 1.9, 5 and 23 Jupiter masses for the putative planets with orbital periods of 15, 25 and 50 years, respectively. Also Campbell et al. 1988[19] inferred the existence of planetary objects or even brown dwarfs around Beta Virginis. However, more recent studies have not confirmed the existence of any substellar companion around Beta Virginis yet. McDonald Observatory team has set limits to the presence of one or more planets[20] with masses between 0.16 and 4.2 Jupiter masses and average separations spanning between 0.05 and 5.2 astronomical units. In 2025, it was noted that the star presents a difference on proper motion measurements taken by the Hipparcos and Gaia spacecrafts, suggesting the presence of an orbiting giant exoplanet.[8]

Nomenclature

β Virginis (Latinised to Beta Virginis) is the star's Bayer designation.

It bore the traditional names Zavijava (also Zavijah, Zavyava and Zawijah) and Alaraph.[21] Zavijava is from the Arabic زاوية العواء zāwiyat al-cawwa’ 'corner of the barking (dog)'. In 2016, the International Astronomical Union organized a Working Group on Star Names (WGSN)[22] to catalog and standardize proper names for stars. The WGSN approved the name Zavijava for this star on 21 August 2016 and it is now so entered in the IAU Catalog of Star Names.[14]

In Chinese, Script error: No such module "Lang". (Script error: No such module "Lang".), meaning Right Wall of Supreme Palace Enclosure, refers to an asterism consisting of Beta Virginis, Sigma Leonis, Iota Leonis, Theta Leonis and Delta Leonis.[23] Consequently, the Chinese name for Beta Virginis itself is Script error: No such module "Lang". (Script error: No such module "Lang"., Template:Langx),[24] representing Script error: No such module "Lang". (Script error: No such module "Lang".), meaning The Right Law Administrator.[25] 右執法 (Yòuzhífǎ), spelled Yew Chi Fa by R.H. Allen, means "the Right-hand Maintainer of Law".[26]

References

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  1. ↑ a b c d e f Script error: No such module "Citation/CS1".
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  3. ↑ a b c d Script error: No such module "Citation/CS1".
  4. ↑ a b c d Script error: No such module "Citation/CS1".
  5. ↑ a b Script error: No such module "citation/CS1".
  6. ↑ a b c d e Script error: No such module "citation/CS1".
  7. ↑ a b c d e Script error: No such module "citation/CS1".. See Table 10.
  8. ↑ a b c Script error: No such module "Citation/CS1".
  9. ↑ a b Script error: No such module "Citation/CS1".
  10. ↑ a b Script error: No such module "Citation/CS1".
  11. ↑ Template:Cite simbad
  12. ↑ Script error: No such module "citation/CS1".
  13. ↑ Script error: No such module "Citation/CS1".
  14. ↑ a b Script error: No such module "citation/CS1".
  15. ↑ Script error: No such module "citation/CS1".
  16. ↑ Script error: No such module "citation/CS1".
  17. ↑ Script error: No such module "Citation/CS1".
  18. ↑ Script error: No such module "Citation/CS1".
  19. ↑ Script error: No such module "Citation/CS1".
  20. ↑ Script error: No such module "Citation/CS1".
  21. ↑ Atlas of the Heavens, part II, catalogue, Antonín Bečvář
  22. ↑ Script error: No such module "citation/CS1".
  23. ↑ Template:In lang 中國星座神話, written by 陳久金. Published by 台灣書房出版有限公司, 2005, Template:ISBN.
  24. ↑ Template:In lang 香港太空館 - 研究資源 - 亮星中英對照表 Template:Webarchive, Hong Kong Space Museum. Accessed on line November 23, 2010.
  25. ↑ Template:In lang English-Chinese Glossary of Chinese Star Regions, Asterisms and Star Name Template:Webarchive, Hong Kong Space Museum. Accessed on line November 23, 2010.
  26. ↑ Script error: No such module "citation/CS1".

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External links

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