Annual parallax Meaning, Definition & Usage

  1. noun the parallax of a celestial body using two points in the earth's orbit around the sun as the baseline
    heliocentric parallax.

WordNet


Definitions
  1. the greatest value of the heliocentric parallax, or the greatest annual apparent change of place of a body as seen from the earth and sun; as, the annual parallax of a fixed star.

Webster 1913