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Saturn (IPA: [ˈsæɾɚn], [ˈsætən]) is the sixth planet from the Sun. It is a gas giant (also known as a Jovian planet, after the planet Jupiter), the second-largest planet in the Solar System after Jupiter. It was named after the Roman God Saturn (the Greek equivalent is Cronos, father of Zeus).
The planet Saturn is primarily composed of hydrogen, with small proportions of helium and trace elements. The interior consists of a small core of rock and ice, surrounded a thick layer of metallic hydrogen and a gaseous outer layer. The outer atmosphere is generally bland in appearance, although long-lived features can appear. Wind speeds on Saturn can reach 1,800 km/hr; significantly faster than on Jupiter. Saturn has a planetary magnetic field that is intermediate in strength between Earth's and the more powerful field around Jupiter.
Saturn has a prominent system of rings, consisting mostly of ice particles with a smaller amount of rocky debris and dust. There are at least 57 moons, with Titan being the largest. Titan is larger than the planet Mercury and is the only moon in the Solar System to possess a significant atmosphere.
Mean Distance from the Sun: 9.539 AU
1, 427,000,000 km /886,700,000 mi
Length of Year: 29.46 Earth years
Rotation Period: 10.66 hours
Mean Orbital Velocity: 9.64 km/s (6 mi/s)
Inclination of Axis: 26.73 degrees
Diameter: 120,536 km (74,901 mi)
Number of Observed Satellites: >25
Comparisons With Earth:
Diameter: 9.4 X Earth's
Average Distance from the Sun: 9.5 X Earth's
Mass: 95 X Earth's
Density: 0.13 X Earth's