Delta Librae
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| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Libra |
| Right ascension | 15h 51m 09.0s |
| Declination | −08° 31′ 08.0″ |
| Apparent magnitude (V) | 4.43 |
| Characteristics | |
| Spectral type | B9.5V |
| Variable type | Eclipsing binary |
| Astrometry | |
| Distance | 300 ly |
| Other designations | |
Zuben Elakribi | |
Delta Librae (δ Librae, δ Lib) is a variable star in the constellation Libra. It has the proper name Zuben Elakribi.[1] With μ Vir it forms one of the Akkadian lunar mansions Mulu-izi[2] (meaning "Man-of-fire"[3]).
δ Lib is approximately 300 light years from the Earth and belongs to the spectral class B9.5V. It is an eclipsing binary star, with a period of 2.3272 days. Its apparent magnitude varies from 4.43m to 5.81m.
Along with λ Tau, it was one of the first stars on which rotational line broadening[4] was observed, by Frank Schlesinger in 1911.
References
- ↑ Bečvář, A., Atlas Coeli II Atlas Coeli II- Catalog, Ceskoslovenské Akademie Ved, Praha,1959.
- ↑ Allen, R. H., (1963). Star Names: Their Lore and Meaning (rep. ed.). New York, NY: Dover Publications Inc.pp. 277, 473.
- ↑ Brown Jr., R., (1891). "Remarks on the Euphratean Astronomical Names of the Signs of the Zodiac", Proceedings of the Society of Biblical Archaeology, vo. 13, p. 194.
- ↑ Schlesinger, F., (1909). "Rotation of Stars about their Axes", Monthly Notices of the Royal Astronomical Society, Vol. 71, p.719.
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