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binary stars
1. Two stars orbiting a common center of gravity.
2. A pair of stars revolving around a common center of gravity, held together by their mutual gravitational interaction.
3. A double star; a system containing two or more stars.

In an eclipsing binary, one star goes behind the other periodically, changing the total amount of light that we see.

This entry is located in the following unit: Astronomy and related astronomical terms (page 5)