astrometry(redirected from astrometrical)
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The precise measurement of the positions and motions of celestial bodies.
as′tro·met′ric (ăs′trō-mĕt′rĭk), as′tro·met′ri·cal adj.
(Astronomy) the branch of astronomy concerned with the measurement of the position and motion of celestial bodies
astrometric, ˌastroˈmetrical adj
The scientific measurement of the positions and motions of celestial bodies.
the branch of astronomy that studies the dimensions of heavenly bodies, especially the measurements made to determine the positions and orbits of various stars. — astrometric, astrometrical, adj.See also: Astronomy