American Heritage® Dictionary of the English Language, Fourth Edition
- n. A stellar system consisting of two stars orbiting about a common center of mass and often appearing as a single visual or telescopic object. Also called double star.
GNU Webster's 1913
- adj. (Astron.) a double star whose members have a revolution round their common center of gravity.
- n. a system of two stars that revolve around each other under their mutual gravitation
“Its a binary star systemthe one you see shining in the sky is a yellow dwarf star, just like our Sun.”
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pretty open-ended here—terms, ideas, lingo, technologies and phenomena (real or postulated) that are, were, should be or could be used in speculative fiction
Looking for tweets for binary star.