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astrometry

   Also found in: Dictionary/thesaurus, Wikipedia, Hutchinson 0.01 sec.
astrometry: see astronomy astronomy, branch of science that studies the motions and natures of celestial bodies, such as planets , stars , and galaxies ; more generally, the study of matter and energy in the universe at large.
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In contrast, astrometry maps the changing position of a star.
Hubble weighs in: pinning down an extrasolar planet's mass by Cowen, R. / Science News
Hoffleit, an authority on variable stars, astrometry, and the history of astronomy, began her career in 1929 as a research assistant at Harvard.
Dorrit Hoffleit Named Two-Time Cambridge Who's Who Professional of ... by Business Wire
Thus, astrometry typically finds planets that take a long time to orbit their parent star.
Uncertainties greet latest planet finds by Cowen, Ron / Science News
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