Noun
a system of two stars that revolve around each other under their mutual gravitation
Source: WordNetA binary star system that includes a nearby white dwarf can produce certain types of these spectacular stellar explosions, including the nova and a Type 1a supernova. Source: Internet
A binary star system can also produce eclipses if the plane of the orbit of its constituent stars intersects the observer's position. Source: Internet
Among gravitationally bound binary star systems, there exists a so-called log normal distribution of periods, with the majority of these systems orbiting with a period of about 100 years. Source: Internet
By the modern definition, the term binary star is generally restricted to pairs of stars which revolve around a common center of mass. Source: Internet
It is a blue-white supergiant of spectral type B2Iab, around 404 light-years from Earth. citation This star is one of the brightest known extreme ultraviolet sources in the sky. citation It is a binary star; the secondary is of magnitude 7.4. Source: Internet
Astrophysics A simulated example of a binary star, where two bodies with similar mass orbit around a common barycenter in elliptic orbits Binaries provide the best method for astronomers to determine the mass of a distant star. Source: Internet