astrometry

Definitions

General Science

  • noun a branch of astronomy involving precise measurements of the positions of objects in the sky, with the use of meridian telescopes, which can now record hundreds of observations per night onto computer disks

Astronomy

  • Branch of astronomy involving precise measurements of the positions of objects in the sky. Astrometry is done especially with the use of meridian telescopes, which can now record hundreds of observations per night onto computer discs. The European Space Agency’s Hipparcos telescope, a success despite technical difficulties, was the first to be launched to perform astrometrical observations above the turbulence of the Earth’s atmosphere.
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