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Saturn

Saturn is the second largest planet and sixth from the sun. Saturn is most known for its rings,first seen in 1610 by Italian scientist Galileo and identified as rings by Dutch astronomer Christian Huygens in 1655. The rings consist greater than 100,000 single ringlets. It is the most oblate planet because of the rapid rotation of the planet, which flattens Saturn at the poles by about 10%. Its composition is mostly composed of hydrogen and helium. It is mostly liquid, with a small rocky core expected, but not directly observe. At the center, heavy elements have probably settled into the small rocky core with a temperature close to 15,000 C (27,000 F). Saturn also has an international heat source (it radiates more energy than it receives). The gravitational pull causes it to emit three times as much heat as it receives from the sun. Saturn's atmosphere is 88% hydrogen and 11% helium, with traces of other gasses. The body of Saturn rotates with a period of 10 hours 39 minutes 2!
5 seconds. The ring system of Saturn is divided into 5 major components: the G, F, A, B, and C rings, listed from the outside to inside (but in reality, these major divisions are subdivided into thousands of individual ringlets). The F and G rings are thin and difficult to see, while the A, B, and C rings are broad and easily visible. The large gap between the A ring and the B ring is called the Cassaini division. The visible rings of Saturn stretch out to a distance of 136,200-km (84,650 miles) from Saturn's center, but in many regions they may be only 5 meters thick. They contain rocks, frozen gases, and water ice in lumps. One of the rings is even dense enough to block sunlight. Saturn's current number of known satellites is 19. These range in size from Titan, the second largest moon in the Solar System, to small asteroid like objects. The moons are Atlas, Calypso, Dione, Enceladus, Epimetheus, Helene, Hyperion, Iapetus, Janus, Mimas, Pan, P…

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