a binary star that can be recognized as such because of its undulating proper motion.
Words nearby astrometric binary
Origin of astrometric binary
First recorded in 1975–80
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Science definitions for astrometric binary
[ ăs′trə-mĕt′rĭk ]
See under binary star.
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