Constellation List
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Bibliography and Credits
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Zubenelgenubi
(zoo-BEN-al-je-NEW-bee)
Alpha2 Librae
Names For This Star
Other names for the star are Elgenubi, Kiffa Australis, or Elkhiffa Australis.
Zubenelgenubi and Elgenubi derive from the Arabic name Al Zuban al Janubiyyah, "The Southern Claw." This name reflects the fact that the stars of Libra once formed the claws of the Scorpion, Scorpius, the next Zodiac constellation to the east.
The alternative names Kiffa Australis and Elkhiffa Australis are a partially Latinized version of the Arabic name Al Kiffah al Janubiyyah, "The Southern Pan (of the Scales)."
Description of the Star
Zubelgenubi is a white A3IV subgiant star having a diameter of about twice that of the sun and a luminosity of about 38 times that of the sun. It has a companion separated by 231 arc sec from the primary star. This corresponds to a projected distance of 5500 AU.
It is suspected that the star has an additional close companion as well orbiting with a period of 20 days or so, according to Burnham.
Other Designations For This Star
Flamsteed |
9 Librae |
Hipparcos Identifier (HIP Number) |
72622 |
Harvard Revised (HR Number) |
5531 |
Henry Draper Catalog (HD Number) |
130841 |
Bonner Durchmusterung (BD Number) |
BD-15 3966 |
Smithsonian Astrophysical
Observatory compendium (SAO Number) |
158840 |
Fundamental Katalog (FK5 Number) |
548 |
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