That Polaris will not always be the pole star is due to
A) the Moon following the ecliptic, instead of the equator.
B) the Earth's revolution being slightly less than exactly 365.25 days.
C) the sidereal day being shorter than the solar day.
D) the Solar winds blowing the Earth farther away from the Sun.
E) precession shifting the celestial pole.

Question

Quizplus · Accepted Answer

Precession is the gradual shift in the orientation of Earth's axis of rotation. Over thousands of years, this movement causes different stars to become the pole star. Currently, Polaris is the North Star, but due to precession, it will not always hold this position.

That Polaris Will Not Always Be the Pole Star Is