astrometric binary

noun Astronomy.

a binary star that can be recognized as such because of its undulating proper motion.

Origin of astrometric binary

First recorded in 1975–80 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Science definitions for astrometric binary

astrometric binary
[ ăs′trə-mĕtrĭk ]

See under binary star.
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