Sentence Examples


  • For the special purpose of determining the solar parallax this instrument has been used in a most refined and perfect manner by Dr Halm at the Cape of Good Hope (Annals of the Cape Observatory, vol.
  • A parsec is the distance at which the observed parallax of the star is equal to 1 second of arc.
  • They took advantage of this fact to explain to them that this distance was obtained by measuring the parallax of the moon.
  • His reasoning was correct, but even Tycho 's marvelous instruments were not accurate enough to register stellar parallax given the vast distances involved.
  • Trigonometric parallax is used to measure the distances of the nearby stars.

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