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Definitions of astrometry:
  • noun:   the branch of astronomy that deals with the measurement of the position and motion of celestial bodies



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Alternative Terms
extragalactic aberration celestial-reference-system parallax very-long-baseline-interferometry vlbi degrade radio-telescope astronomical-photography charge-coupled-device interferometry speckle satellite-astronomy astrometry interferometric-astrometry-jpg astronomy-dragonland-album stars-switchfoot-song kinematics solar-system galaxy milky-way hipparchus-3 timocharis aristillus precession james-bradley telescope nutation friedrich-bessel minute-of-arc binary-star 61-cygni european-space-agency hipparcos proper-motion astronomer frame-of-reference celestial-mechanics stellar-dynamics galactic-astronomy observational-astronomy time-electric-light-orchestra-album coordinated-universal-time international-atomic-time earth-disambiguation cosmic-distance-ladder near-earth-object extrasolar-planet space-interferometry-mission terrestrial-planet pulsar asymmetry supernova dark-matter 50000-quaoar 90377-sedna michael-e-brown palomar-observatory samuel-oschin-telescope statistics women-s-fiction star-trek-voyager set-construction scene battlestar-galactica physical-cosmology star-formation planetology astrochemistry astrobiology ephemeris equatorium gaia-probe spherical-astronomy star-cartography plate-center astro hyades-3 geminga yerkes-observatory planet wasp gridless-narrow-angle-astrometry gnaa miguel-itzigsohn