Exam 9: Moons, Rings, and Plutoids: Small Worlds Among Giants

The Cassini Division is a gap in Saturn's rings caused by

Describe the odd rotations of Pluto and Charon.

Europa is covered with an ocean of _ .

Alone of all the Galilean moons, Callisto shows no sign of plate tectonics.

All four ring systems orbit the equators of Jovian planets outside their Roche limits.

The volcanic activity of Enceladus has what effect outside the moon itself?

The only Jovian moon to orbit its planet retrograde and out of the equatorial plane is .

In what two ways is the orbit of Triton unusual?

The atmospheres of both Titan and Triton are mainly _ .

Which of these moons has the densest atmosphere?

Pluto is most similar to

The F- ring is held in place around Saturn by two shepherd moons.

The cantaloupe skin terrain of Triton is thought to be due to _.

Ganymede and Callisto have densities suggesting they are made of rocky cores and mantles of

Which moon of Saturn has the surface with the widest range of ages? Why?

The next moon likely to be broken up into a ring is

In terms of dark, smoother maria and cratered highlands, which Jovian moon most resembles the near side of our own?

What is so unusual about Pluto's orbit?

The initial prediction by Percival Lowell of Pluto's position was close to the place it was, in fact, found by Clyde Tombaugh in 1930.

At its equinoxes, Saturn's rings are most open and double the planet's brightness.