1. Saturn
is the sixth planet from the Sun and the second largest planet in the Solar
System, after Jupiter.
2. Named
after the Roman god of agriculture, Saturn, its astronomical symbol (♄)
represents the god's sickle.
3. Saturn
is a gas giant with an average radius about nine times that of Earth. While
only one-eighth the average density of Earth, with its larger volume Saturn is
just over 95 times more massive than Earth.
4. Saturn's
interior is probably composed of a core of iron, nickel and rock (silicon and
oxygen compounds), surrounded by a deep layer of metallic hydrogen, an
intermediate layer of liquid hydrogen and liquid helium and an outer gaseous
layer.
6. Electrical
current within the metallic hydrogen layer is thought to give rise to Saturn's
planetary
magnetic field, which is slightly weaker than Earth's and around
one-twentieth the strength of Jupiter's
7. The outer atmosphere is generally bland and
lacking in contrast, although long-lived features can appear.
8. Wind
speeds on Saturn can reach 1,800 km/h (1,100 mph), faster than on Jupiter, but
not as fast as those on Neptune.
9. Saturn
has a prominent ring system that consists of nine continuous main rings and
three discontinuous arcs, composed mostly of ice particles with a smaller
amount of rocky debris and dust.
10. Sixty-two
known moons orbit the planet; fifty-three are officially named. This does not
include the hundreds of "moonlets" within the rings. Titan, Saturn's
largest and the Solar System's second largest moon is larger than the planet
Mercury and is the only moon in the Solar System to retain a substantial
atmosphere.
Planet Profile
1. Circumference
at Equator: 365,882.4 km
2. Mass:
568,319,000,000,000,000 billion kg (95.16 x Earth)
3. Average Distance from Sun: 1,426,666,422 km
(9.58 AU)
4. Known
Satellites: 6
5. Notable Satellites: Titan, Rhea and Enceladus
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