Epoch J2000 Equinox J2000
|Right ascension||11h 50m 41.71824s|
|Declination||+1° 45′ 52.9910″|
|Apparent magnitude (V)||3.604|
|Spectral type||F9 V|
|U−B color index||+0.090|
|B−V color index||+0.553|
|Radial velocity (Rv)||+4.1 km/s|
|Proper motion (μ)|| RA: +740.23 mas/yr |
Dec.: -270.43 mas/yr
|Parallax (π)||91.50 ± 0.22 mas|
|Distance||35.65 ± 0.09 ly |
(10.93 ± 0.03 pc)
|Absolute magnitude (MV)||3.41|
|Radius||1.681 ± 0.008 R☉|
|Luminosity||3.572 ± 0.052 L☉|
|Surface gravity (log g)||4.25 cgs|
|Temperature||6,132 ± 26 K|
|Metallicity [Fe/H]||0.20 dex|
|Rotational velocity (v sin i)||4.3 km/s|
|Age||2.9 ± 0.3 Gyr|
Beta Virginis (β Virginis, abbreviated Beta Vir, β Vir), also named Zavijava, is (despite its designation 'beta') the fifth-brightest star in the constellation of Virgo. Larger and more massive than the Sun, it is comparatively metal-rich (that is, it has a higher preponderance of elements heavier than helium).
It bore the traditional names Zavijava (also Zavijah, Zavyava and Zawijah) and Alaraph. 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) 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.
In Chinese, 太微右垣 (Tài Wēi Yòu Yuán), meaning Right Wall of Supreme Palace Enclosure, refers to an asterism consisting of Beta Virginis, Sigma Leonis, Iota Leonis, Theta Leonis and Delta Leonis. Consequently, Beta Virginis itself is known as 太微右垣一 (Tài Wēi Zuǒ Yuán yī, English: the First Star of Right Wall of Supreme Palace Enclosure.), representing 右執法 (Yòuzhífǎ), meaning The Right Law Administrator. 右執法 (Yòuzhífǎ), spelled Yew Chi Fa by R.H. Allen, means "the Right-hand Maintainer of Law" 
Hunt for substellar objects
According to Nelson & Angel (1998), 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 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 with masses between 0.16 and 4.2 Jupiter masses and average separations spanning between 0.05 and 5.2 Astronomical Units.
- van Leeuwen, F. (November 2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics, 474 (2): 653–664, arXiv:0708.1752, Bibcode:2007A&A...474..653V, doi:10.1051/0004-6361:20078357
- Gutierrez-Moreno, Adelina; Moreno, Hugo (June 1968), "A photometric investigation of the Scorpio-Centaurus association", Astrophysical Journal Supplement, 15: 459, Bibcode:1968ApJS...15..459G, doi:10.1086/190168
- Morgan, W. W.; Keenan, P. C. (1973), "Spectral Classification", Annual Review of Astronomy and Astrophysics, 11 (1): 29, Bibcode:1973ARA&A..11...29M, doi:10.1146/annurev.aa.11.090173.000333
- Holmberg, J.; Nordström, B.; Andersen, J. (July 2009), "The Geneva-Copenhagen survey of the solar neighbourhood. III. Improved distances, ages, and kinematics", Astronomy and Astrophysics, 501 (3): 941–947, arXiv:0811.3982, Bibcode:2009A&A...501..941H, doi:10.1051/0004-6361/200811191
- Carrier, F.; Eggenberger, P.; D'Alessandro, A.; Weber, L. (2005). "Solar-like oscillations in the F9 V β Virginis". New Astronomy. 10 (4): 315–323. arXiv:astro-ph/0502014. Bibcode:2005NewA...10..315C. doi:10.1016/j.newast.2004.11.003. Archived from the original on 2007-10-23. Retrieved 2007-06-05.
- Boyajian, Tabetha S.; et al. (February 2012), "Stellar Diameters and Temperatures. I. Main-sequence A, F, and G Stars", The Astrophysical Journal, 746 (1): 101, arXiv:1112.3316, Bibcode:2012ApJ...746..101B, doi:10.1088/0004-637X/746/1/101. See Table 10.
- Gehren, T. (1978). "On the chemical composition and age of Beta VIR". Astronomy and Astrophysics. 65 (3): 427–433. Bibcode:1978A&A....65..427G.
- "* bet Vir". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2012-03-20.
- "IAU Catalog of Star Names". Retrieved 28 July 2016.
- Atlas of the Heavens, part II, catalogue, Antonín Bečvář
- "IAU Working Group on Star Names (WGSN)". Retrieved 22 May 2016.
- (in Chinese) 中國星座神話, written by 陳久金. Published by 台灣書房出版有限公司, 2005, ISBN 978-986-7332-25-7.
- (in Chinese) 香港太空館 - 研究資源 - 亮星中英對照表 Archived 2010-08-19 at the Wayback Machine., Hong Kong Space Museum. Accessed on line November 23, 2010.
- (in Chinese) English-Chinese Glossary of Chinese Star Regions, Asterisms and Star Name Archived 2010-08-10 at the Wayback Machine., Hong Kong Space Museum. Accessed on line November 23, 2010.
- The Range of Masses and Periods Explored by Radial Velocity Searches for Planetary Companions
- A search for substellar companions to southern solar-type stars
- Detection Limits from the McDonald Observatory Planet Search Program