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astrometry definition

as·trom·etry (ə sträm′ə trē)

noun

the branch of astronomy dealing with the measurement of the positions, motions, and distances of planets, stars, etc.

Etymology: astro- + -metry

Related Forms:

  • astrometric as′·tro·met′·ric (as′trō me′trik) adjective

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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