Why is the F ring much narrower than the main rings?
A) The ring is in a stronger part of Saturn's gravitational field and cannot spread out any farther.
B) The ring is constrained by Saturn's strong magnetic field.
C) Two shepherd satellites focus the particles into a narrow ring.
D) There are not enough particles available to make a wider ring.

Question

Quizplus · Accepted Answer

The F ring of Saturn is kept narrow by the gravitational influences of two moons known as shepherd satellites, which orbit on either side of the ring. These moons help to confine the particles of the ring, maintaining its narrow shape.

Why Is the F Ring Much Narrower Than the Main