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Nov 28, 2009
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as•trom•e•try



Pronunciation: (u-strom'i-trē), [key]
—n.
the branch of astronomy that deals with the measurement of the positions and motions of the celestial bodies. Also called positional astronomy.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

astrometric binaryastron
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