Observation data Epoch J2000.0 Equinox J2000.0 (ICRS)
Constellation
Libra
Right ascension
15h 35m 31.57881s[1]
Declination
−14° 47′ 22.3278″[1]
Apparent magnitude (V)
+3.91[2]
Characteristics
Spectral type
G8.5 III[3]
Astrometry
Radial velocity (Rv)
−26.71[4] km/s
Proper motion (μ)
RA: +65.34[1] mas/yr Dec.: +7.45[1] mas/yr
Parallax (π)
19.99 ± 0.20 mas[1]
Distance
163 ± 2 ly (50.0 ± 0.5 pc)
Absolute magnitude (MV)
−1.59[5]
Details[4]
γ Lib A
Mass
1.15 M☉
Radius
11.14 R☉
Luminosity
72 L☉
Surface gravity (log g)
2.81±0.18[6] cgs
Temperature
4826±48[6] K
Metallicity [Fe/H]
−0.26±0.03[6] dex
Rotational velocity (v sin i)
1.60 km/s
Age
4.31 Gyr
Other designations
Zubenelhakrabi, γ Lib, 38 Lib, BD−14° 4237, FK5 577, HD 138905, HIP 76333, HR 5787, SAO 159370, WDS J15355-1447A[7]
Database references
SIMBAD
data
Gamma Librae (γ Librae, abbreviated Gamma Lib, γ Lib) is a suspected[8] binary star system in the constellation of Libra. It is visible to the naked eye, having an apparent visual magnitude of +3.91.[2] Based upon an annual parallax shift of 19.99 mas as seen from Earth, it lies 163 light years from the Sun.
The primary component (designated Gamma Librae A) has been formally named Zubenelhakrabi/zuːˌbɛnɛlˈhækrəbi/, the traditional name of the system.[9]
^ abcdeCite error: The named reference vanLeeuwen2007 was invoked but never defined (see the help page).
^ abCite error: The named reference pasj60_4_781 was invoked but never defined (see the help page).
^Cite error: The named reference perkins1989 was invoked but never defined (see the help page).
^ abCite error: The named reference Jofre2015 was invoked but never defined (see the help page).
^Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
^ abcMarfil, E.; Tabernero, H. M.; Montes, D.; Caballero, J. A.; Soto, M. G.; González Hernández, J. I.; Kaminski, A.; Nagel, E.; Jeffers, S. V.; Reiners, A.; Ribas, I.; Quirrenbach, A.; Amado, P. J. (2020), "Stellar atmospheric parameters of FGK-type stars from high-resolution optical and near-infrared CARMENES spectra", Monthly Notices of the Royal Astronomical Society, 492 (4): 5470–5507, arXiv:2001.01495, doi:10.1093/mnras/staa058
^Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
^Cite error: The named reference Eggleton2008 was invoked but never defined (see the help page).
^"Naming Stars". IAU.org. Retrieved 16 December 2017.
GammaLibrae (γ Librae, abbreviated Gamma Lib, γ Lib) is a suspected binary star system in the constellation of Libra. It is visible to the naked eye...
Sigma Librae (σ Librae, abbreviated Sigma Lib, σ Lib) is a binary star in the constellation of Libra. The apparent visual magnitude is +3.29, making it...
may be a gamma-ray source. The similarity of this object to BL Lacertae was noted, leading to it being designated as a BL Lac object. AP Librae emits a...
traditional name of GammaLibrae. With μ Virginis it forms one of the Akkadian lunar mansions Mulu-izi(meaning "Man-of-fire"). δ Librae is approximately...
2.57 Alpha Leporis Star 2.58 Gamma Corvi Binary star system 2.59 Zeta Sagittarii Triple star system 2.62 2.60 Beta Librae Star 2.63 Alpha Serpentis Star...
Bayer's Gamma and Omicron Scorpii, for example, were later reassigned from Scorpius to Libra and given the new names Sigma and Upsilon Librae.: p. 196 ...
Archived from the original on 2020-10-08 – via IanRidpath.com. "Gacrux/Gamma Crucis 2?". Sol Station. Sol Company. Archived from the original on 2011-11-03...
Regulus, along with five slightly dimmer stars (Zeta Leonis, Mu Leonis, Gamma Leonis, Epsilon Leonis, and Eta Leonis) have collectively been called 'the...
While the existence of a substellar companion to Gamma Cephei was suspected since 1988, the planet Gamma Cephei Ab was not confirmed until 2003, and that...
B-type PV Telescopii Blue large-amplitude pulsator Long-period Mira Semiregular Slow irregular Other Gamma Doradus Solar-like oscillations White dwarf...
strong chromospheric emission lines. Examples are FK Com, V1794 Cygni and UZ Librae. A possible explanation for the rapid rotation of FK Comae stars is that...
Retinue 92 Leonis 虎賁 Hǔ Bēn Emperor's Bodyguard 72 Leonis 日 Rì Sun Kappa Librae Libra A single-star asterism in the Room mansion 騎陣將軍 Qí Zhèn Jiāng Jūn...
North and South America. The Moon will also occult the bright star Alpha Librae as seen from the southern hemisphere a few hours before greatest eclipse...
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