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astrometry Line breaks: as¦trom|etry
Pronunciation: /əˈstrɒmɪtri/

Definition of astrometry in English:


[mass noun]
The measurement of the positions, motions, and magnitudes of stars.
Example sentences
  • In this way, astronomers will perform very precise astrometry to detect the reflex motion of stars due to orbiting planets.
  • One technique, known as astrometry, involves precisely measuring the position of a star.
  • The main branches are astrometry, celestial mechanics, and astrophysics.


Example sentences
  • To date there have been no successful detections of extrasolar planets with the astrometric method.
  • Tycho had collected in one place the finest astrometric instruments of his day - four decades before Galileo introduced the astronomical telescope.
  • After obtaining the images, she used astrometric software to determine the coordinates of the target asteroid's apparent position in each image.
Definition of astrometry in:
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