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In the table below, unless indicated by a "†", the "modern proper name" is the name approved by the WGSN and entered in the List of IAU-approved Star Names [6] or otherwise approved by the IAU. The WGSN decided to attribute proper names to individual stars rather than entire multiple-star systems . [ 10 ]
English. Read; Edit; View history ... Download as PDF; Printable version; In other projects ... This is a list of star systems within 100–150 light years of Earth ...
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 ...
ο Leonis (Latinised to Omicron Leonis) is the star's Bayer designation.The designations of the two constituents as Omicron Leonis A and B, and those of A's components—Omicron Leonis 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).
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 .
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
Its primary is a B-type main-sequence star, and the secondary an A-type main-sequence star. The secondary star may be an Am star. [4] Farther out are two other stars, designated components C and D. They are 76.1″, or about 1.27′, away from the central system. [9] Their combined spectrum matches that of another B-type main-sequence star. [6]
Theta Serpentis (θ Serpentis, abbreviated Theta Ser, θ Ser) is a triple star system in the constellation of Serpens.. It consists of a binary pair designated Theta Serpentis AB and whose two components are designated Theta 1 Serpentis or Theta Serpentis A (officially named Alya / ˈ æ l i ə /, the traditional name for the entire system) [8] [9] and Theta 2 Serpentis or Theta Serpentis B ...