A system of two stars in which one star revolves round the other or both revolve round a common centre.
More example sentences
- Neutron stars in binary star systems, however, can reverse this trend and speed up with the help from the companion star.
- In a binary star system where one star is normal and the other is a black hole, ‘matter will flow off the star onto the black hole,’ Morgan said.
- Near the geographic center of the galaxy was a binary star system called Theralia.
Definition of binary star in:
- The US English dictionary