from The American Heritage® Dictionary of the English Language, 4th 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.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A stellar system that has two stars orbiting around each other; double star.
from the GNU version of the Collaborative International Dictionary of English
- adj. a double star whose members have a revolution round their common center of gravity.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a system of two stars that revolve around each other under their mutual gravitation
Sorry, no etymologies found.
Its a binary star systemthe one you see shining in the sky is a yellow dwarf star, just like our Sun.