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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 ...
This category is for physical triple stars, sometimes called trinary stars or ternary star systems in the case of a hierarchical star system. For optical triple stars, see Category:Triple stars v
A Tri-Star wheel assembly rotating through a hole. The tri-star is a novel wheel design—originally by Robert and John Forsyth, assigned to Lockheed in 1967—in which three wheels are arranged in an upright triangle with two on the ground and one above them. If either of the wheels in contact with the ground gets stuck, the whole system ...
Beta Centauri is a triple star system in the southern constellation of Centaurus.It is officially called Hadar (/ ˈ h eɪ d ɑːr /).The Bayer designation of Beta Centauri is Latinised from β Centauri, and abbreviated Beta Cen or β Cen.
Atlas is a triple star system, with the inner pair orbiting in under a year and the outer star orbiting in 260 years. The outer star, component Ab (sometimes component B, such as in CCDM and SIMBAD [16]), has been resolved at a distance of 0.784″ from the unresolved spectroscopic binary.
Alpha Centauri is a triple star system, with its two main stars, A and B, together comprising a binary component. The AB designation, or older A×B, denotes the mass centre of a main binary system relative to companion star(s) in a multiple star system. [85]
This category contains articles about star systems, which are groups of two or more gravitationally-bound stars in a region usually smaller than one light-year. Star clusters (groups of many more stars that occupy a much larger region) are listed in Category:Star clusters.
Beta Trianguli (Beta Tri, β Trianguli, β Tri) is the Bayer designation for a binary star [10] system in the constellation Triangulum, located about 127 light years from Earth. [1] Although it is only a third-magnitude star, [ 2 ] it is the brightest star in the constellation Triangulum .