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astrometric binary

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noun Astronomy.
  1. 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. 2018
astrometric binary in Science

astrometric binary

[ăs′trə-mĕtrĭk]
  1. See under binary star.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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