Linked from
The 45 pages that link to Binary star, each with the reason it gives.
SiriusNarrower topic: Sirius is one example of a gravitationally bound stellar pair.
X-ray binaryNarrower topic: An X-ray binary is a compact-object-powered type of binary star system.
Alpha CentauriNarrower topic: The A–B pair is a binary within the wider triple-star system.
Roche lobeNarrower topic: A Roche lobe is defined for each star within such a system.
AlgolNarrower topic: Algol’s main eclipsing pair is a binary within a larger system.
Zeta OphiuchiNarrower topic: Zeta Ophiuchi's inferred ejection history begins in a binary system.