Overview:
Year: About 29 Earth years.
Day: About 10.7 Earth hours.
Diameter: About 72,000 miles, nine times the size of Earth.
Effective temperature: - 288 degrees Fahrenheit.
Atmosphere: Hydrogen, helium.
Saturn, the sixth planet from the sun, is the second-largest planet in our solar system by mass and size and the most distant planet easily visible to the unaided eye from Earth. This gas giant made mostly of hydrogen and helium is easily recognized by its yellowish color, magnificent rings, and oblate—or flattened at the poles—shape.
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