Question

Define Parallax, Discuss angular method
to determine the diameter of a a
planet
na​

Answer 1

Answer:

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Parallax (from Ancient Greek (parallaxis) 'alternation') is a displacement or difference in the apparent position of an object viewed along two different lines of sight, and is measured by the angle or semi-angle of inclination between those two lines.[1][2] Due to foreshortening, nearby objects show a larger parallax than farther objects when observed from different positions, so parallax can be used to determine distances.

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