Definition from Wiktionary, the free dictionary
Jump to: navigation, search



Ancient Greek παράλλαξις (parallaksis, alteration).


parallax (plural parallaxes)

  1. The change of angular position of two stationary points relative to each other as seen by an observer, due to the motion of an observer.
  2. The apparent shift of an object against a background due to a change in observer position.
  3. The angle of seeing of the astronomical unit.

Derived terms[edit]


The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Help:How to check translations.