Question

Physical reason in the discrepency in mercury's perihilion

Answer 1

ANSWER

The point of closest approach, called the periapsis (or, because the central body in the Solar System is the Sun, perihelion), is fixed. A number of effects in the Solar System cause the perihelia of planets to precess (rotate) around the Sun. ... Mercury deviates from the precession predicted from these Newtonian effects.

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