Small deviations in a planet's orbital motion:
A)show we don't fully understand gravitational forces yet.
B)indicate the presence of an extensive atmosphere.
C)indicate the presence of a powerful magnetic field.
D)imply the nearby presence of a massive body.
E)show the planet's orbit isn't stable.

Question

Quizplus · Accepted Answer

Small deviations in a planet's orbital motion imply the nearby presence of a massive body, which is typically another planet or a star. These gravitational forces can cause slight variations in the orbit of the affected planet. Small deviations in a planet's orbital motion can imply the nearby presence of a massive body, whose gravitational pull is affecting the planet's orbit. This is known as perturbation theory and has been used to discover new planets in our own solar system and beyond.

Small Deviations in a Planet's Orbital Motion