The Outer Planets 489
16.1 Jupiter 490
Jupiter's Appearance and Physical Properties 490
Jupiter's Interior 491
Jupiter's Atmosphere 492
Jupiter's Ring 494
Jupiter's Moons 495
16.2 Saturn 498
Saturn's Appearance and Physical Properties 498
Saturn's Rings 499
Origin of Planetary Rings 501
The Roche Limit 501
Saturn's Moons 502
16.3 Uranus 504
Uranus's Atmosphere 504
Uranus's Interior 505
Uranus's Rings and Moons 506
Uranus's Odd Tilt 506
16.4 Neptune 507
Neptune's Structure 508
Neptune's Atmosphere 509
Neptune's Rings and Moons 510
16.5 Pluto 511