Gamma Librae
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Libra |
| Right ascension | 15h 35m 31.54s |
| Declination | −14° 27′ 22.4″ |
| Apparent magnitude (V) | +3.91[1] |
| Absolute magnitude (V) | +0.56 |
| Distance | 152 ly (46.63 pc) |
| Spectral type | K0 III[1] |
| Other designations | |
Gamma Librae (γ Lib, γ Librae), or Zuben-el-Akrab, is a star in the constellation Libra.
Name
Gamma Librae has the traditional name Zuben-el-Akrab (also rendered Zuben (el) Hakrabi and corrupted as Zuben Hakraki). The name is a modification of the Arabic زبانى العقرب Zuban al-ʿAqrab "the claws of the scorpion", a name that dates to before Libra was a distinct constellation from Scorpius.
Properties
Gamma Librae belongs to the spectral class K0III, and is of the fourth-magnitude, having apparent magnitude +3.91. It is approximately 152 light-years (47 parsecs) from the Earth. This star has 2.15 times the mass of the Sun and is radiating around 71 times the luminosity of the Sun at an effective temperature of 4,822 K.[1]
References
- 1 2 3 Takeda, Yoichi; Sato, Bun'ei; Murata, Daisuke (August 2008), "Stellar Parameters and Elemental Abundances of Late-G Giants", Publications of the Astronomical Society of Japan, 60 (4): 781–802, arXiv:0805.2434
, Bibcode:2008PASJ...60..781T, doi:10.1093/pasj/60.4.781 - ↑ "HD 138905 -- Double or multiple star". SIMBAD Astronomical Database. Retrieved 2007-01-22.
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