There are currently 2 astronomical definitions for the tag 'binarystar'.
binary star, binaries, double star
algolvariablestar, rscanumvenaticorumstar, astrometricbinarystar, closebinarystar, contactbinarystar, detachedbinarystar, eclipsingbinarystar, ellipsoidalvariablestar, eruptivebinarystar, interactingbinarystar, semidetachedbinarystar, spectroscopicbinarystar, visualbinarystar, widebinarystar
accretion, apocenter, centerofmass, companionstar, dynamicalparallax, inclination, massloss, massratio, multiplestar, occultation, orbitdetermination, orbit, period, periodchange, perioddetermination, phasewave, positionangle, runawaystar, semimajoraxis, separation, twobodyproblem, vonzeipeltheorem