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Beta Lyrae Aa is a semidetached binary system made up of a stellar class B6-8 primary star and a secondary that is probably also a B-type star. The fainter, less massive star in the system was once the more massive member of the pair, which caused it to evolve away from the main sequence first and become a giant star .
In 2016, the International Astronomical Union (IAU) organized a Working Group on Star Names (WGSN) [2] to catalog and standardize proper names for stars. The WGSN's first bulletin, dated July 2016, [3] included a table of 125 stars comprising the first two batches of names approved by the WGSN (on 30 June and 20 July 2016) together with names of stars adopted by the IAU Executive Committee ...
ξ Puppis (Latinised to Xi Puppis) is the system's Bayer designation.The designations of the two constituents as Xi Puppis A and B, and those of A's components - Xi Puppis Aa and Ab - derive from the convention used by the Washington Multiplicity Catalog (WMC) for multiple star systems, and adopted by the International Astronomical Union (IAU).
Download as PDF; Printable version; ... This category associates tightly to the list of traditional star names, and more loosely ... (star system) HD 131496; Alpha ...
A multiple star system consists of two or more stars that appear from Earth to be close to one another in the sky. [dubious – discuss] This may result from the stars actually being physically close and gravitationally bound to each other, in which case it is a physical multiple star, or this closeness may be merely apparent, in which case it is an optical multiple star [a] Physical multiple ...
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Star system ← → ← → Median distance Stars in system Spectral type Apparent magnitude (V) Comments and references Spica (Alpha Virginis) 250 ± 10: 2: B1III-IV + B2V +0.97: One of the closest core-collapse supernova candidates to Earth. Bellatrix (Gamma Orionis) 250 ± 10: 1: B2 III: 1.64
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