Saturn

Saturn's storms may be smaller than Jupiter's, and its core temperatures cooler, but its rings far surpass Jupiter's in size and splendor.

They're a quarter of a million kilometers wide, but only one and a half kilometers thick. They're made of water ice and ice-covered rock, and may be the remains of moons or asteroids smashed to pieces by Saturn's gravity.

Voyager flew by Saturn's large moon titan, whose nitrogen atmosphere is tinged reddish-brown with methane and what may be organic molecules... but for Voyager this smog obscured the ocean some think may lie below.

Voyager 2 used Saturn's gravity to slingshot it on to Uranus, a planet that's mostly water, ammonia and methane.

This planet's pole points to the Sun, which may be the result of some vast cosmic collision in the past.

Revolution

Rotation

Radius

29.46 Earth years

10.2 Earth hours

60,268 km

Distance From the Sun

Mass

Density

1,426,725,400 km

568.51 x 1027 grams

0.70 gm/cm3

Mean Cloud Temperature

Moons

Atmosphere

-125C

22: Pan, Atlas, Prometheus, Pandora, Epimetheus, Janus, Mimas, Enceladus, Tethys, Telesto, Calypso, Dione, Helene, Rhea, Titan, Hyperion, Iapetus, Phoebe,

hydrogen and helium

Rings

The first planet known to have rings

Saturn's storms may be smaller than Jupiter's, and its core temperatures cooler, but its rings far surpass Jupiter's in size and splendor.

They're a quarter of a million kilometers wide, but only one and a half kilometers thick. They're made of water ice and ice-covered rock, and may be the remains of moons or asteroids smashed to pieces by Saturn's gravity.

Voyager flew by Saturn's large moon titan, whose nitrogen atmosphere is tinged reddish-brown with methane and what may be organic molecules... but for Voyager this smog obscured the ocean some think may lie below.

WANT TO LEARN MORE?
Missions:
 • Cassini and Huygens
Recent Articles:
 • 4 New Moons of Saturn Said Discovered, Bring Total to 22
Additional Links:
 • JPL's Solar System Exploration
 • The Nine Planets
 • Views of the Solar System
 • Windows to the Universe