astrometri

listen to the pronunciation of astrometri
التركية - الإنجليزية
astrometry
That branch of astronomy that deals with the measurement of the positions and motions of celestial bodies, particularly stars
measurement of the positions and motions of objects in the sky The word astrometry derives from the Greek roots astro (the combining form of the Greek word 'a`stron, meaning star) and meter (measure)
the branch of astronomy that deals with the measurement of the position and motion of celestial bodies
The accurate determination of the positions and motions of celestial objects
Division of astronomy dealing with precise determinations of the positions, motions, and parallaxes of astronomical bodies
The careful, precise measurement of astronomical objects, usually made with respect to standard catalogues of star positions For comet orbit computations, astrometry good to 1" or 2" (1 or 2 arc seconds), or better, is the standard nowadays
The art of making measurements among the stars, or of determining their relative magnitudes
astrometri
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