double star
English edit
Noun edit
double star (plural double stars)
- (astronomy) Two stars which form a stellar system, such that they orbit the point of equilibrium of their gravitational fields; a binary star.
- (astronomy) Two stars that appear to be one when seen with the naked eye, either because they orbit one another (binary stars) or happen to be in the same line of sight even though they are separated by a great distance (optical binaries).
Synonyms edit
- (star system): binary, binary star, double star system, binary star system
Derived terms edit
Related terms edit
Translations edit
double star
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See also edit
References edit
- "double star" in the Dictionary.com Unabridged, v1.0.1, Lexico Publishing Group, 2006.
- Random House Webster's Unabridged Electronic Dictionary, 1987-1996.