To measure large distances, such as the distance of a planet or a star from Earth, astronomers use the principle of parallax. Here, the term parallax is the semi-angle of inclination between …

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Nov 3, 2025 · Parallax, in astronomy, the difference in direction of a celestial object as seen by an observer from two widely separated points. The measurement of parallax is used directly to …

The meaning of PARALLAX is the apparent displacement or the difference in apparent direction of an object as seen from two different points not on a straight line with the object; especially : …

Apr 30, 2024 · Parallax is the apparent shift in the position of an object when observed from different viewpoints. This effect occurs because the perspective from which an object is …

Parallax is the change in an object's relative position as seen from two different positions. Mathematically speaking, the relationship between any two observation points and a distant …

This is a demonstration of the parallax effect: the apparent shift in position of a relatively nearby object against more distant ones when viewed from different vantage points.

What is parallax? Parallax is the apparent shift in position of a nearby object when it is viewed from different locations.

Apparent and obvious (Definition of parallax from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

PARALLAX definition: the apparent displacement of an observed object due to a change in the position of the observer. See examples of parallax used in a sentence.