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Astrometric Binary

(binary star system detected by observing the movement of a star)

An Astrometric Binary is a Binary Star system where one of the stars cannot be seen but the other one can be seen moving as if in orbit, i.e., through Astrometry.

It is one of a number binary-star classes based upon how the star is determined to be binary. Others:

(star type,binary star type,astrometry)

Referenced by:
Binary Star
Eclipsing Binary
Spectroscopic Binary
Spectrum Binary
Visual Binary