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Topic: Saturn-(planet)

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Saturn

Planetary ring

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Saturn - Wikipedia, the free encyclopedia Saturn's shape is visibly flattened at the poles and bulging at the equator (an oblate spheroid); its equatorial and polar diameters vary by almost 10% (120,536 km vs. 108,728 km). Saturn appears to the naked eye in the night sky as a bright, yellowish star varying usually between magnitude +1 and 0 and takes approximately 29 and a half years to make a complete circuit of the ecliptic against the background constellations of the zodiac. Saturn's interior is similar to Jupiter's, having a rocky core at the center, a liquid metallic hydrogen layer above that, and a molecular hydrogen layer above that. en.wikipedia.org /wiki/Saturn_(planet)

MSN Encarta - Saturn (planet) The mean density of Saturn is eight times less than that of Earth because the planet consists mainly of the lightweight gas hydrogen. Saturn's atmospheric constituents are, in order by mass, hydrogen (88 percent) and helium (11 percent); and traces of methane, ammonia, ammonia crystals, and such other gases as ethane, acetylene, and phosphine comprise the remainder. Saturn's most distinctive feature is its ring system, which was first seen in 1610 by Italian scientist Galileo, using one of the first telescopes. encarta.msn.com /encyclopedia_761556443/Saturn_(planet).html

SATURN (PLANET) - LoveToKnow Article on SATURN (PLANET) Saturn was a god oi agriculture, his name being derived from serere, " to sow."2 The identification of Saturn with Cronus3 gave rise to the legenc that after his deposition by Zeus (Jupiter) Saturn wandered to 2 He was also known by the epithet of Stercutus or Sterculius, th god of fertilizing manure. Both from this difference and from the appearance presented by the planet it is clear that the visible surface is not a solid, as in the case of Mars, but consists of a layer of cloudy or vaporous matter, which conceals from view the solid body of the planet, if any such exists. The position of the ring as seen against the planet is marked by a dark line stretching across the equator, which is the thin shadow of the ring, on which the sun shines at a very acute angle. 25.1911encyclopedia.org /S/SA/SATURN_PLANET_.htm

Saturn Saturn is the least dense of the planets; its specific gravity (0.7) is less than that of water. Saturn's interior is similar to Jupiter's consisting of a rocky core, a liquid metallic hydrogen layer and a molecular hydrogen layer. Saturn is visibly flattened (oblate) when viewed through a small telescope; its equatorial and polar diameters vary by almost 10% (120,536 km vs. 108,728 km). seds.lpl.arizona.edu /nineplanets/nineplanets/saturn.html

Saturn Saturn is the sixth planet from the Sun and is the second largest in the solar system with an equatorial diameter of 119,300 kilometers (74,130 miles). Saturn is visibly flattened at the poles, a result of the very fast rotation of the planet on its axis. The dark band across the middle of Saturn is the shadow of the rings cast on the planet (the Sun is almost 3 degrees above the ring plane.) The bright stripe directly above the ring shadow is caused by sunlight reflected off the rings onto Saturn's atmosphere. www.solarviews.com /eng/saturn.htm

Saturn's Magnificent Rings He said, "I have observed the highest planet [Saturn] to be tripled-bodied. Saturn's G ring was discovered by Voyager 1 in November 1980 and imaged again by Voyger 2 on August 26, 1981 from a range of about 175,000 kilometers. Saturn's ring system is divided up into 7 major divisions with alphabetic designators in the order of discovery. www.solarviews.com /eng/saturnrings.htm

Tour the Solar System and Beyond - Saturn Saturn, the sixth planet from the sun, is one of the five planets visible from Earth without a telescope. Since the 17th century, when Saturn's dazzling, complex ring system was first observed by the Italian astronomer Galileo Galilei, the planet has stood as a symbol of the majesty, mystery, and order of the physical universe. Although Galileo was the first to see Saturn's rings (in 1610) it wasn't until 1659 that the Dutch astronomer Christiaan Huygens, using an improved telescope, observed that the rings actually are separate from the planet. spacekids.hq.nasa.gov /osskids/animate/saturn.html

The Planet Saturn: General Features Saturn is the second most massive planet, and also the second largest in size. Saturn has the lowest density of any planet, 0.7 g/cc, which is less than that of water. Saturn is of such low density that it would float in a (gigantic) bathtub. csep10.phys.utk.edu /astr161/lect/saturn/features.html

KidsAstronomy.com - Saturn With 30 companions, Saturn has more moons than any other planet. Saturn over threw his father to become king of the gods, but was then over thrown himself by his son Jupiter. Saturn was the god of agriculture, he was called Cronus by the Greeks. www.kidsastronomy.com /saturn.htm

The Sixth Planet from the Sun: Saturn Saturn is the second largest planet in the solar system, Jupiter being the larger planet. The interior the planet is composed of 5 main sections. Winds on Saturn can reach to over 1500km/h! www.geocities.com /CapeCanaveral/Hall/3230/saturn/5_0.html

Saturn Saturn is the sixth planet from the Sun, named after the ancient Roman god of agriculture, believed to have ruled the earth during a time of happiness and virtue. Saturn is second in size of all the planets, and the least dense of all, it could float on water! This observation, together with the fact that Saturn's atmosphere seems to be depleted of helium with respect to the Sun's and Jupiter's atmospheres, suggests that helium droplets form in Saturn's atmosphere and fall to the interior. www.mira.org /fts0/planets/100/text/txt001x.htm

SPACE.com -- Hubble Gets Superb View of Saturn and Rings Sometimes from Earth the rings of Saturn, a mix of dust and ice chunks that orbit the planet around its equator, are seen edge-on and barely visible. Saturn's tilt produces seasons on the giant gas planet, for the same reason Earth has seasons. The images show the planet's rings at full tilt during a setup that won't be repeated for many years. www.space.com /scienceastronomy/hubble_saturn_030909.html

APOD: 2002 February 15 - Saturn: Lord of the Rings Saturn's moons, the rings may eventually darken and sag toward the gas giant, losing their lustre over the next few hundred million years. The presence of such a "lost" ring of Saturn was first hinted at in reports dating back to the early 20th century. Saturn's magnificent rings still offer one of the most stunning astronomical sights. antwrp.gsfc.nasa.gov /apod/ap020215.html

ASTRONOMY (SATURN) * The axis of Saturn's magnetic field is aligned parallel to the planet's rotation axis, contrary to the circumstances in both the Earth and Jupiter. Saturn's 18th moon was discovered in 1990 from images taken by Voyager 2 in 1981. Voyager 2 flew by the planet and its moons in August 1981. vesuvius.jsc.nasa.gov /er/seh/saturn.html

The Planetary Society's Learning Center: Saturn, Sixth Planet from the Sun Saturn, the sixth planet from the sun, is famous for its stunning array of rings--although all of the gas giants are now known to possess rings, none are as spectacular as those of Saturn. Composed mainly of hydrogen gas, Saturn is the least dense planet in the solar system, and would float on water if there were an ocean large enough to hold it. Although Saturn's rings are very wide, extending from the top of its atmosphere to well beyond the orbits of its closest moons, they are very thin, measuring no more than a few kilometers (about a mile) in thickness. www.planetary.org /learn/solarsystem/saturn.html

Origins PRC00-01: Planet Hunters on Trail of Worlds Smaller than Saturn The planet is one of the smallest found so far; it is at least 70 percent the mass of Saturn. Planet-hunting astronomers have crossed an important threshold in planet detection with the discovery of two planets outside our solar system that may be smaller in mass than Saturn. The planet's average temperature is a scorching 1530 degrees Fahrenheit (830 degrees Celsius), and it presumably has a thick atmosphere. origins.stsci.edu /news/2000/01

The Planet Saturn Saturn, the second most massive planet, and the most distant planet known to the ancients, is one of the most beautiful sites in the Solar System, as witnessed by the adjacent image. Although this feature is no longer unique, since we now know that all the Gas Giant planets have rings, the rings of Saturn are much more elaborate than those of any of the other planets. Saturn shares many features with its even larger Gas Giant neighbor Jupiter, but has various unique features in its own right. csep10.phys.utk.edu /astr161/lect/saturn/saturn.html

Amazon.com: Books: Saturn Saturn tells the story of a scientific expedition bound for the planet Saturn for the purpose of scientific exploration and colonization. Wisely cast with a skilled group of readers, SATURN spins the tale of a space colony of government outcasts (translation, those who don't agree with the powers that be) in the throes of establishing their own government. Saturn's moon Titan is discussed fairly often in the book but the action never moves at all to that fascinating satellite. www.amazon.com /exec/obidos/tg/detail/-/0312872186?v=glance

CNN.com - Cassini enters Saturn orbit - Jul 1, 2004 SATURN: Planet second in size to Jupiter with a diameter of 74,898 miles (120,511 km). This image of Saturn was captured by Cassini as it approached the planet. Saturn, the second-largest planet in our solar system, has intrigued scientists for centuries. www.cnn.com /2004/TECH/space/07/01/cassini.orbit

Saturn rings - Pictures of the rings of Saturn The rings of Saturn are not perfectly round - the gravitation of Mimas, one of Saturn's larger moons, pulls the rings somewhat into an elliptical shape. Saturn's main rings are called the A-ring, the B-ring and the C-ring. Saturn's other rings are overexposed on this photograph in order to make the faint F-ring visible. www.the-planet-saturn.com /saturns-rings-pictures.html

SPACE.com -- NightSky Friday: See Saturn Closest to Earth in 30 Years Possibly this name was applied because Saturn seems to move so very slowly among the stars, compared to nearer planets that shift their seasonal positions in the sky more quickly. That means from our planet, Saturn will rise as the Sun sets, reaching its highest point in the southern sky at midnight and setting as the Sun rises. This allows the planet to be seen in all its glory, and it also accentuates Saturns brightness. www.space.com /spacewatch/saturn_guide_031205.html

SATURN - A PLANET IN OUR SOLAR SYSTEM Saturn is the sixth planet from the Sun and the second largest planet in our solar system. Upon reaching Saturn in July, 2004 the craft was to orbit the planet for four years gathering information about the planet, its moons and its rings. Saturn is surrounded by hundreds of rings, made up of pieces of ice, rocks and dust. www.saskschools.ca /~gregory/space/saturn.html

The Planet Saturn Rhea and Phoebe - moons of the planet Saturn Tethys, Titan and Mimas - moons of the planet Saturn Saturn as seen from its moons - artwork by David Seal www.the-planet-saturn.com

Cassini-Huygens Home Saturn's moon Pandora glides in front of the narrow F ring, making the moon's oblong outline visible. The Cassini spacecraft will come face-to-face with the great, white streaks of Saturn's moon Dione on Oct. 11, 2005, when it flies to within 500 kilometers (310 miles) of the surface. This half-lit view beautifully captures the ponderously old and cratered surface of Saturn's icy moon Rhea. saturn.jpl.nasa.gov /home/index.cfm

EAAE-AOL : Simple Trigonometry - distance towards Saturn The planet Saturn - is well known for its famous rings.These strange rings consist of ice and rocks, there has been some discussion about these rings. Actually, this is why Saturn is often called a "gas-planet". Notice, the close correspondence between the shadow indicated on the upper planet drawing, and the shadow markings on the lower planet drawing. www.amtsgym-sdbg.dk /as/AOL-SAT/SATURN.HTM

Cassini-Huygens: Multimedia-Images This grand mosaic consists of 126 images acquired in a tile-like fashion, covering one end of Saturn's rings to the other and the entire planet in between. While cruising around Saturn in early October 2004, Cassini captured a series of images that have been composed into the largest, most detailed, global natural color view of Saturn and its rings ever made. Later in the mission, when the spacecraft's trajectory takes it far from Saturn and also into the direction of the Sun, Cassini will be able to look back and view Saturn and its rings in a more fully-illuminated geometry. saturn.jpl.nasa.gov /multimedia/images/image-details.cfm?imageID=1398

Planetary Society: Missions to Saturn While at Saturn, the two Voyager spacecraft discovered three new moons of Saturn, the intricate structure and spoke-like features of the ring system, as well as information about the planet's atmosphere and magnetic field. During the flyby, Pioneer 11 studied the planet's atmosphere and magnetic field and took pictures of Saturn and its moons. The spacecraft used Saturn's strong gravity to change its course and gather speed so it was able to fly on to Uranus and Neptune. www.planetary.org /learn/missions/saturnmissions.html

Cornell News: New moons of Saturn discovered The great distance that the moons orbit from Saturn, says Nicholson, indicates that the moons were captured into orbit after the planet formed, unlike the larger regular satellites that are thought to have coalesced from a disk of dust and gas that surrounded the planet as it formed. Burns notes that an irregular satellite's orbit is "long and looping," unlike the orbit of an inner moon, which is nearly circular and lies in the planet's equatorial plane. Until this latest discovery, Saturn was known to have only one irregular, outer satellite, Phoebe, which was discovered by W. Pickering 102 years ago. www.news.cornell.edu /releases/Oct00/Saturn.moons.deb.html

The Planet Saturn Saturn is the 6th planet from the Sun. Saturn has yellow, gray and brown clouds that form belts or rings around it. Saturn is still very large, over 9 times larger than Earth. www.kidport.com /RefLib/Science/Space/Saturn.htm

The Real Lord of the Rings Through 17th century optics, Saturn appeared to be one bright star closely flanked by two dimmer ones -- a blurry suggestion of the planet's magnificent rings. Actually, other giant planets in our solar system do have rings, but they are very dark and millions of times less massive than the rings of Saturn. Astronomers once thought that Saturn's rings formed when Saturn did: 4.8 billion years ago as the Sun and planets coalesced from a swirling cloud of interstellar gas. science.nasa.gov /headlines/y2002/12feb_rings.htm

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