astrometric binary
- a binary star that can be recognized as such because of its undulating proper motion.
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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
[ăs′trə-mĕt′rĭk]
- See under binary star.
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The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.