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 two sight-lines …

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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 : the angular …

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 viewed changes and …

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 find the …

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 object …

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

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

Aug 21, 2025 · Parallax is a phenomenon in which an object appears to shift its position when viewed from different perspectives. This effect is commonly observed in everyday life, such as when looking …

Parallax is the apparent shift of an object's position relative to more distant background objects caused by a change in the observer's position. In other words, parallax is a perspective effect of geometry.