Final answer:
Parallax errors, also called diurnal parallax, occurs when there is an apparent shift in position of nearby objects compared to distant backgrounds due to observer's change in location.
Explanation:
Parallax errors are sometimes known as diurnal parallax, which is the apparent shift in position of a relatively nearby object compared to a more distant background as the observer's location changes. For instance, in astronomy, parallax is half the angle that a star appears to move as Earth orbits from one side of the Sun to the other.
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