One interesting aspect of Saturn is its largest satellite, Titan (in fact, Titan is the second largest satellite in the solar system behind Jupiter's Ganymede). Wind speeds on Saturn are extremely high, having been measured at slightly more than 1,000 mph, considerably higher than Jupiter. Saturn is considerably colder than Jupiter being further from the Sun, with an average temperature of about -285 degrees F. Like the other gas giants, Saturn's surface to atmosphere interface is rather nebulous, and likely has a small, rocky core surrounded by a liquid and very thick atmosphere. However starting around -300 degrees F., the ammonia would be frozen right out of the clouds. Saturn also has clouds made of ammonia ice crystals, but the clouds tops are considerably colder than Jupiter's approaching -400 degrees F. Hydrogen makes up nearly all of the atmosphere, with lesser amounts of helium and much lesser quantities of methane and ammonia. It is likely more satellites will be found in the future when astronomers diagnose Saturn's small, thin rings, and separate the ice chunks from actual satellites.Ītmosphere and Weather: One of the four gas giants, Saturn's atmosphere is much like that of Jupiter's. The large moon Titan is the most interesting in terms of atmospheric composition (mentioned below). It is very difficult for astronomers to count the number of moons revolving around Saturn, because it is difficult to distinguish between tiny moons and the numerous ice chunks composing Saturn's smaller ringlets. Saturn has 60 confirmed satellites, many of which are buried inside Saturn's smaller ring systems which are being discovered by NASA's Cassini spacecraft. It takes a little over 29 years to make one revolution around the Sun.
Saturn's specific gravity is less than water's, meaning it would float on a body of water! Like Jupiter, Saturn rotates extremely fast, and completes a rotation in about 10 hours. It is second in size in our solar system, surpassed only by Jupiter, but Saturn's mass is much smaller. Saturn is almost twice as far from the Sun as Jupiter at nearly 900 million miles.
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