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
Dictionary.com 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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