Your essay

May 31, 2006 11:55

Copy and paste this into microsoft word. Exactly how I have it. It should be almost exactly 3 pages. The works cited page should be as the 4th page only. MAKE SURE YOU INCLUDE IT WITH IT. It's the sources that you got your information from. I also emailed it to you, so you mine as well try that because I copied and pasted it as well as attached it. Pictures are at the bottom, go to the links and print them. YOU'RE WELCOME

Love Keith

Jordan Sullivan
Astronomy
5/30/2006
Saturn

Saturn, the 6th planet from the sun in our solar system, is the second largest planet in the solar system with a diameter of just over 74,000 miles. It is also known as a gas giant. In addition to its enormous size, Saturn is most popular for its spectacular set of rings circling the planet. Galileo was the first to notice these rings, as two lumps on either side of the planet. It wasn’t until 1659 that the astronomer Christian Huygens later discovered that they were rings. In comparison to the earth, Saturn takes nearly 29.5 years to revolve about the sun.
Of the planets in our solar system, Saturn is the least dense. Its gravity is less than that of water, 0.7. In comparison to Jupiter, Saturn is composed of about 75% hydrogen and 25% helium. However, there are some traces of other things on the icy planet such as water, methane, ammonia, and rock. At its core, Saturn is composed of rocky and metal elements. There are also traces of various ices on Saturn. Saturn’s core is extremely hot, 12,000K at the core of the planet. The planet also emits more energy than it receives from the sun.
In comparison to Jupiter, the clouds of Saturn are much less colorful. This is because the atmosphere of Saturn includes much more sulfur, which contributes to Saturn’s overall yellow appearance. The atmosphere of Saturn is quite small, considering how vast the interior of Saturn is. Its atmosphere, aside from sulfur, is also composed of simple molecules of hydrogen and helium. There is also nitrogen and oxygen present within Saturn’s atmosphere. Beyond the small layer of atmosphere of Saturn is followed by its massive outer mantle, then the inner mantle, and finally the core. Saturn’s winds are also among the Solar Systems fastest; data received from the Voyager indicates that winds reach speeds of 1,116mph. Saturn’s bland atmosphere also exhibits long-lived ovals.
In 1990 the Hubble Telescope observed an enormous white cloud near Saturn’s equator which was not there during the Voyager encounters. In 1994, another small storm was also observed. These storms, mainly the one in 1990, are known as Great White Spots. These storms are a naturally occurring Saturnian phenomenon with a 30-year recurring period; however, these storms are very short lived. These white spots have been observed on Saturn, dating back to 1876, nearly every 30 years.
Saturn is best known for its planetary rings, which make it stand out from most of the other planets in the solar system. The rings of Saturn are a series of rings that orbit the planet and consist of mainly ice and dust. Galileo was the first to observe these rings in 1610. The rings have been given letter names in the order of their discovery. The main rings are, working outward from the planet, known as C, B, and A. There are several gaps between the rings of Saturn, all which are affected by the gravitational pull of Saturn’s moons of the tiny particles which make up these rings. In 1675, Giovanni Cassini determined that Saturn’s ring turned out to be multiple smaller rings with gaps between them, with the largest being named the Cassini Division.
The Cassini Division is a 2,980 mile region between Ring A and Ring B. From earth it appears to be a thing black gap between the two rings. Saturn’s moon Mimas and its gravitational pull is the one responsible for the gap between the two. The A Ring is the outermost of the two largest and brightest rings around Saturn. Its boundaries are between the Cassini Division and the orbit of one of Saturn’s smaller moons, Atlas. Its thickness is estimated to be about 10 to 30 metres with a mass of 6.2e18 kilogram. The B Ring is the innermost of the two largest and brightest rings around Saturn. The B Ring is quite different from the A Ring, in that it is made of many ringlets, some which have unusual orbits. There are also spoke like features that run across the B Ring. These spokes are composed of mainly suspended dust particles. This ring has a thickness of about 5 to 10 metres with a mass of 2.8e19 kilograms. Another of Saturn’s most extraordinary features is its moons, or satellites.
The gas giant has an enormous group of 31 moons. One of Saturn’s moons, Titan, is one of the only in the Solar System that have much of an atmosphere. It is also one of the largest moons in the atmosphere. Another of Saturn’s interesting moons is called Prometheus and Pandora. These moons are better known as the “Sheppard moons” because they herd particles into Saturn’s F-Ring. Some of Saturn’s moons are icy moons, while others are smaller moons that are just considered rocks in space. Many of the moons were discovered many years ago during Roman times, and were named after several of the Greek gods, such as Atlas and Titan. The sizes of these moons vary drastically. The smallest moon is about 5.6km in diameter while the largest is about 5,150km in diameter. Its moons also span over a great distance away from the giant gas planet. The closest being 133,600km, while the furthest is about 23,130,000km away.
The mysterious, icy, yet giant gas planet of Saturn is one of amazing fascination. From its 31 moons, to its vast array of bright and beautiful rings, the 6th planet from the sun is one of great interest.

Works Cited

http://www.windows.ucar.edu/tour/link=/saturn/saturn.html
http://www.nineplanets.org/saturn.html
http://en.wikipedia.org/wiki/Saturn_(planet)

PICTURES
http://astrogeology.usgs.gov/assets/wallpaper/saturn.jpg
http://nssdc.gsfc.nasa.gov/image/planetary/saturn/hst_saturn_storm.jpg
http://www.spacetoday.org/images/Saturn/CassiniAtSaturn/SaturnCassini_05_07_04.jpg
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