Jack C. Davis Observatory Planetary Walkway Saturn |
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Dedication: Dedicated to our loving mother, Bernice Sheldon, who with her devotion and caring helped create the family we are today. With much love from her sons,
Gene Sheldon
Bart Sheldon
Bret Sheldon |
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| Named after the Roman god of agriculture, Saturn is one of five planets visible from Earth without a telescope. The planet has stood as a symbol of majesty and mystery. |
Mean Distance from Sun 1,429.4 milion kilometers |
Orbital Period 29.46 years |
Rotational Period 10 hours 40 minutes |
Saturn the most magnificent celestial object one can observe through a telescope from Earth. A major attribute of Saturn is a robust and beautiful system of rings that can be seen from Earth. Saturn has a lot of similarities with Jupiter. Saturn is massive having the weight of 95 Earth's and is a gaseous world similar to Jupiter. Saturn takes 29.4 years to make a complete orbit around the Sun and rotates completely on its axis every 10h40m (0.44 Days). Saturn distance from the Sun is over 9 times that of the Earth (9.02A.U.) Saturn is not as colorful Jupiter, but it does have belts of yellowish and tan color that drift around the planet with small ovals and spots that appear and disappear frequently in its cloud layers. Saturn's rings are quite complex and are being studied currently by an imbedded space probe that took 7 years to get to Saturn. The probe arrived at Saturn in 2004 and is named Cassini. You can learn of the latest discoveries of Saturn at http://saturn.jpl.nasa.gov/home/index.cfm.
Saturn has 47 moons some of which have been discovered by Cassini scientists. The Cassini has made major break through in the understanding of ring system formation and structure. Although Saturn is a beautiful world it is a hostile cold and windy planet. It is the windiest planet with equatorial winds moving at 1500 km/h (938 mi/h). Saturn was named after the father of Jupiter that derives from Roman mythology. | | Previous: Jupiter | Walkway Overview | Next: Uranus |
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| This enhanced-color picture shows Saturn, its rings, and four of its icy satellites. Three satellites (Tethys, Dione, and Rhea) are visible against the darkness of space, and another smaller satellite (Mimas) is visible against Saturn's cloud tops very near the left horizon and just below the rings. The dark shadows of Mimas and Tethys are also visible on Saturn's cloud tops, and the shadow of Saturn is seen across part of the rings. Saturn, second in size only to Jupiter in our Solar System, is 120,660 km (75,000 mi) in diameter at its equator (the ring plane) but, because of its rapid spin, Saturn is 10% smaller measured through its poles. Saturn's rings are composed mostly of ice particles ranging from microscopic dust to boulders in size. These particles orbit Saturn in a vast disk that is a mere 100 meters (330 feet) or so thick. The rings' thinness contrasts with their huge diameter--for instance 272,400 km (169,000 mi) for the outer part of the bright A ring, the outermost ring visible here. The pronounced concentric gap in the rings, the Cassini Division (named after its discoverer), is a 3500-km wide region (2200 mi, almost the width of the United States) that is much less populated with ring particles than the brighter B and A rings to either side of the gap. The rings also show some enigmatic radial structure ('spokes'), particularly at left. This image was synthesized from images taken in Voyager's orange, blue, and ultraviolet filters and was processed to create an exaggerated false color. Image courtesy NASA Jet Propulsion Laboratory (NASA-JPL) |
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