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Alpha Librae

Alpha Librae (α Librae, abbreviated Alpha Lib, α Lib) is a quadruple star system and, despite its 'alpha' designation, it is the second-brightest star in the constellation of Libra. The two components are designated α1 Librae and α2 Librae. The system bore the traditional name of Zubenelgenubi /zuːˌbɛnɛldʒɪˈnuːbi/, though the International Astronomical…

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Apparent magnitude (V)
+5.153 · +2.741
B−V color index
+0.39 · +0.15
Constellation
Libra
Declination
−15° 59′ 50.0482″ · −16° 02′ 30.3955″
Evolutionary stage
Main sequence or blue straggler (α2 A)
Right ascension
14h 50m 41.18097s · 14h 50m 52.71309s

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Alpha Librae

Nodes41
Edges40
Triples56
Avg. degree1.95
Density0.04878
Components1

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Alpha Librae

Top relations

related to External links · 15
Alpha Librae → Articles, Astrophoto, DSS2, GALEX, Hydrogen, IRAS, Jim, Kaler, Retrieved July, SDSS, Sky Map, STARS, WikiSky, X-Ray, Zubenelgenubi
related to Nomenclature · 14
Alpha Librae → Another, Arabic, Bayer, Elkhiffa Australis, Kiffa Australis, Lanx Australis, Latin, Latinised, Libra, Librae, Scorpius, The, Zuben Elgenubi, Zubenelgenubi
related to Properties · 9
Alpha Librae → A3, Castor Moving Group, F4, Hierarchy, Its, Librae, Sun, The, They
related to KU Librae · 4
Alpha Librae → It, KU Lib, KU Librae, The
Apparent magnitude (V) · 2
Alpha Librae → +2.741, +5.153
B−V color index · 2
Alpha Librae → +0.15, +0.39
Declination · 2
Alpha Librae → −15° 59′ 50.0482″, −16° 02′ 30.3955″
Right ascension · 2
Alpha Librae → 14h 50m 41.18097s, 14h 50m 52.71309s
Spectral type · 2
Alpha Librae → F3 V + M0–1 V, kA2hA5mA4 IV-V
U−B color index · 2
Alpha Librae → +0.10, −0.02

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Important terminology

librae star system α2 name alpha occulted zubenelgenubi libra components stars constellation motion lib α1 10 two sky november ku

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Alpha LibraeApparent magnitude (V)+5.1531.00infobox
Alpha LibraeApparent magnitude (V)+2.7411.00infobox
Alpha LibraeB−V color index+0.391.00infobox
Alpha LibraeB−V color index+0.151.00infobox
Alpha LibraeConstellationLibra1.00infobox
Alpha LibraeDeclination−15° 59′ 50.0482″1.00infobox
Alpha LibraeDeclination−16° 02′ 30.3955″1.00infobox
Alpha LibraeEvolutionary stageMain sequence or blue straggler (α2 A)1.00infobox
Alpha LibraeRight ascension14h 50m 41.18097s1.00infobox
Alpha LibraeRight ascension14h 50m 52.71309s1.00infobox
Alpha LibraeSpectral typeF3 V + M0–1 V1.00infobox
Alpha LibraeSpectral typekA2hA5mA4 IV-V1.00infobox
Alpha LibraeU−B color index−0.021.00infobox
Alpha LibraeU−B color index+0.101.00infobox

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