astrometry astrometry


  • (n) the branch of astronomy that deals with the measurement of the position and motion of celestial bodies


  • He owes his success to a branch of astronomy called astrometry, which includes the measuring of tiny perturbations, or wobbles, in the paths of some stars as they move almost .


  • High Precision Astrometry in Asteroid Mitigation - the NEOShield Perspective

    Among the currently known Near Earth Objects (NEOs), roughly 1400 are classified as being potentially hazardous asteroids. The recent Chelyabinsk event has shown that these objects can pose a real threat to mankind. We illustrate that high precision asteroid astrometry plays a vital role in determining potential impact risks, selecting targets for deflection demonstration missions and evaluating ...
    on November 25, 2013     Source: SpaceRef

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astral astral
/ˈæ strəl /