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parallactic motion

noun, Astronomy
1.
the apparent motion of stars due to the earth's orbital motion.
Origin of parallactic motion
1885-1890
1885-90
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for parallactic motion
Historical Examples
  • If we ascertain the parallactic motion of a group of stars, then we can find their average distance.

    Astronomy David Todd
  • The most obvious and direct method is to determine the parallactic motion of the stars of known parallax.

  • From the parallactic motion of the star it is possible to deduce its distance from the sun, or its parallax.

    Lectures on Stellar Statistics Carl Vilhelm Ludvig Charlier

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