- Delta Librae
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δ Librae Observation data
Epoch J2000 Equinox J2000Constellation 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 ElakribiDelta 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.
Bayer α (Zubenelgenubi) • β (Zubeneschamali) • γ (Zuben Elakrab) • δ (Zuben Elakribi) • ε • ζ¹ • ζ³ • η • θ • ι¹ • ι² • κ • λ • μ • ν • ξ¹ • ξ² • ο • σ (Brachium, γ Sco) • τ • υFlamsteed 2 • 3 • 4 • 5 • 7 (μ) • 8 (α¹, Zubenelgenubi) • 9 (α², Zubenelgenubi) • 10 • 11 • 12 • 13 (ξ¹) • 15 (ξ²) • 16 • 17 • 18 • 19 (δ, Zuben Elakribi) • 20 (σ, Brachium) • 21 (ν) • 22 • 23 • 24 (ι¹) • 25 (ι²) • 26 • 27 (β, Zubeneschamali) • 28 • 29 (ο) • 30 • 31 (ε) • 32 (ζ¹) • 33 • 34 (ζ³) • 36 • 37 • 38 (γ, Zuben Elakrab) • 39 (υ) • 40 (τ) • 41 • 42 • 43 (κ) • 44 (η) • 45 (λ) • 46 (θ) • 47 • 48 • 49 • 50Nearby WISE 1541-2250 • 33 G. (Gliese 570) • HN (Gliese 555) • HO (Gliese 581) • 2MASS 1507-1627 • Gliese 595List Categories:- Libra constellation
- Bayer objects
- Stars with proper names
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