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An eclipsing binary star is a binary star system in which the orbital plane of the two stars lies so nearly in the line of sight of the observer that the components undergo mutual eclipses. [20] In the case where the binary is also a spectroscopic binary and the parallax of the system is known, the binary is quite valuable for stellar analysis.
Binary star system detected near Sagittarius A*. This image indicates the location of the newly discovered binary star D9, which is orbiting Sagittarius A*, the supermassive black hole at the ...
The Solar System, and the other stars/dwarfs listed here, are currently moving within (or near) the Local Interstellar Cloud, roughly 30 light-years (9.2 pc) across. The Local Interstellar Cloud is, in turn, contained inside the Local Bubble , a cavity in the interstellar medium about 300 light-years (92.0 pc ) across.
Gamma Cephei (γ Cephei, abbreviated Gamma Cep, γ Cep) is a binary star system approximately 45 light-years away in the northern constellation of Cepheus.The primary (designated Gamma Cephei A, officially named Errai / ɛ ˈ r eɪ. iː /, the traditional name of the system) [11] [12] is a stellar class K1 orange giant or subgiant star; it has a red dwarf companion (Gamma Cephei B).
Albireo is the star in the head of the constellation of Cygnus (bottom). β Cygni (Latinised to Beta Cygni) is the system's Bayer designation. The brighter of the two components is designated β¹ Cygni or Beta Cygni A and the fainter β² Cygni or Beta Cygni B. The origin of the star system's traditional name Albireo is unclear.
A binary consisting of a yellow supergiant or yellow hypergiant and a Blue supergiant. MACS J1149 Lensed Star 1: 1.49 [7] 4,410 2018 The most distant known star prior to the discovery of Earendel. Warhol 0.94 [8] 3,000 2014 Transient, extremely luminous O-type star or a Large Wolf-Rayet star [9] AT 2022zmn: 0.019 [10] 84 2022 Luminous blue ...
The two stars take more than 3,000 years to orbit one another and they will make their closest approach to each other around 2060. One or both of the stars may be a spectroscopic binary as well. The stars have masses of 2.55 and 2.64 solar masses respectively and shine with a total luminosity of 55 and 63 times that of the Sun.
The most common kinds of binary system are binary stars and binary asteroids, but brown dwarfs, planets, neutron stars, black holes and galaxies can also form binaries. A multiple system is similar but consists of three or more objects, for example trinary stars and trinary asteroids .
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