
	Where results make sense

Topic: Rings of Uranus

Related Topics

Planetary ring

Jupiter (planet)

Complex number

Planet

Ganymede (moon)

Kuiper belt

Hawaiian Pidgin

Television in the United States

The Legend of Sleepy Hollow

In the News (Wed 30 Dec 09)

Northern Trust

Marvin Harrison

Peter Chernin

Gary Locke

Match Play

Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	Uranus
		Uranus is the seventh planet from the Sun and the third largest (by diameter).
		Uranus was the son and mate of Gaia the father of Cronus (Saturn) and of the Cyclopes and Titans (predecessors of the Olympian gods).
		Uranus' magnetic field is odd in that it is not centered on the center of the planet and is tilted almost 60 degrees with respect to the axis of rotation.
	www.nineplanets.org /uranus.html (1122 words)

	The Library - Astronomy - Uranus
		Uranus was discovered in 1781 by astronomer William Herschel, who at first believed it to be a comet.
		Uranus' magnetic field is unusual in that the magnetic axis is tilted 60 degrees from the planet's axis of rotation and is offset from the center of the planet by one-third of the planet's radius.
		Uranus is so far from the Sun that, even though tipped on its side and experiencing seasons that last over twenty years, the temperature differences on the summer and winter sides of the planet do not differ that greatly.
	www.lunaroutpost.com /library/uranus.htm (501 words)

	Uranus
		This view of Uranus was recorded by Voyager 2 on January 25, l986, as the spacecraft left the planet behind and set forth on its cruise to Neptune.
		The thin crescent of Uranus is seen at an angle of 153 degrees between the spacecraft, the planet and the Sun.
		Lying inward from the epsilon ring are the delta, gamma and eta rings; the beta and alpha rings; and finally the barely visible 4, 5 and 6 rings.
	www.solarviews.com /eng/uranus.htm (1938 words)

	Uranus
		Uranus is the seventh planet from the Sun and the third largest (by diameter).
		Uranus was the son and mate of Gaia the father of Cronus (Saturn) and of the Cyclopes and Titans (predecessors of the Olympian gods).
		Uranus' magnetic field is odd in that it is not centered on the center of the planet and is tilted almost 60 degrees with respect to the axis of rotation.
	seds.lpl.arizona.edu /nineplanets/nineplanets/uranus.html (1122 words)

	Uranus
		Ring particles are dark, and could consist of rocky or carbonaceous material.
		The greenish color of Uranus' atmosphere is due to methane and high-altitude photochemical smog.
		Inward from the epsilon ring are the delta, gamma, eta, beta and alpha rings.
	astro.nmsu.edu /~aklypin/ast110/WebSite/uranus.htm (1072 words)

	WTP: Uranus: Rings in False Color
		The 9 main rings of Uranus are visible here as horizontal lines.
		The somewhat fainter, pastel lines seen between the rings are artifacts of computer enhancement.
		The image shows that the brightest, or epsilon ring at top is neutral in color, with the fainter 8 remaining rings showing slight color differences between them.
	pds.jpl.nasa.gov /planets/captions/uranus/9rings.htm (84 words)

	Uranus, rings
		Uranus has a faint system of 13 narrow, elliptical-shaped rings, composed of dark dust and rocks up to about 10 meters in diameter.
		The ring system was discovered in 1977, during an occultation of a star by the planet.
		As the star first approached and then receded behind the planet it appear to blink off and on – a blinking found to be due to a system of rings.
	www.daviddarling.info /encyclopedia/U/Uranus_rings.html (126 words)

	Voyager - Science - Planetary Voyage - Uranus - The Rings
		All nine previously known rings of Uranus were photographed and measured, as were other new rings and ringlets in the Uranian system.
		Incomplete rings and the varying opacity in several of the main rings leads scientists to believe that the ring system may be relatively young and did not form at the same time as Uranus.
		The sharp edge of the epsilon ring indicates that the ring is less than 150 meters (500 feet) thick and that particles near the outer edge are less than 30 meters (100 feet) in diameter.
	voyager.jpl.nasa.gov /science/uranus_rings.html (449 words)

	StarDate Online \| Solar System Guide \| Uranus
		Uranus receives little heat from the Sun, and it does not produce much on its own, so there is no energy source to produce the dramatic cloud bands and weather systems seen on other worlds.
		On Uranus, though, the layer of hydrogen and helium is not as thick as on the larger planets, extending perhaps only one-fifth of the distance down from its cloudtops.
		Narrow rings encircle Uranus, but their material is darker than charcoal, so astronomers didn't discover them until 1977, when the rings blocked the light of a star that was about to pass behind Uranus.
	stardate.org /resources/ssguide/uranus.html (843 words)

	USATODAY.com - New red, blue rings found around Uranus (Site not responding. Last check: )
		While Uranus had been known to have inner rings of neutral color, the newly discovered outer rings show color contrasts that researchers think are caused by light reflected off particles that differ in size from one ring to the other.
		And the outermost ring is only the second blue ring to have been observed, a team led by Imke de Pater of the University of California, Berkeley, reports in Friday's issue of the journal Science.
		The scientists however suspect that both of these rings are subject to forces acting on dust in the rings, which allow the tiny particles to survive while the larger ones are captured by their moons.
	www.usatoday.com /tech/science/space/2006-04-06-rings-of-uranus_x.htm (486 words)

	Hubble Spots Two New Rings at Uranus - Planetary News \| The Planetary Society
		The rings were observed as part of a long-term observing campaign by scientists Mark Showalter and Jack Lissauer.
		According to their calculations, the system of moons and rings should be unstable on a time scale of just millions of years, a tiny fraction of the age of the solar system.
		Uranus' rings and moons form a bullseye of orbital paths around the tilted planets.
	planetary.org /news/2005/1224_Hubble_Spots_Two_New_Rings_at_Uranus.html (381 words)

	The Riddle of Uranus - Wavelength Virtual Astronomical Tours
		The rings of Uranus are actually very dark; their albedo is only a few percent.
		Uranus has 20 named moons plus 1 recently discovered one which as yet has not been given an official name.
		Uranus is composed primarily of rock and various ices, with only about 15% hydrogen and a little helium.
	www.wwiaviation.com /wavelength/uranus.html (893 words)

	ASP: Next Stop: Uranus
		Uranus was the first planet to be discovered that was not known to the ancients.
		We view the Uranus system nearly pole-on now, because Uranus's spin axis is tilted by about 90 degrees relative to its orbit path and since it is in a part of its orbit where one pole is pointed almost directly toward the Sun and the inner planets (including Earth).
		Uranus is one of the giant planets in the solar system, a designation it shares with Jupiter, Saturn, and its more distant neighbor, Neptune.
	www.astrosociety.org /education/publications/tnl/04/04.html (2715 words)

	KSBI-TV - Technology - Hubble Discovers Rings & Moons Around Uranus
		The largest ring is twice the diameter of the planet's previously known rings.
		The rings are so far from the planet, they are being called Uranus' "second ring system." One of the new moons shares its orbit with one of the rings.
		The ring may be a telltale sign of an unseen belt of bodies a few feet to a few miles in size.
	www.ksbitv.com /technology/2110462.html (695 words)

	Uranus - EnchantedLearning.com
		This is because it is such a large planet (and the gravitational force a planet exerts upon an object at the planet's surface is proportional to its mass and to the inverse of its radius squared).
		Uranus is over 19 times as far from the Sun as the Earth is; it averages 19.18 A.U. At aphelion (the farthest point in its solar orbit) it is 1,850,000,000 miles (3,003,000,000 km) from the Sun.
		Uranus is a frozen, gaseous planet with a molten core.
	www.enchantedlearning.com /subjects/astronomy/planets/uranus (693 words)

	APOD Index - Solar System: Uranus
		Uranus, like Venus, has a rotation axis that is greatly tilted and sometimes points near the Sun.
		Ring systems are a common to the solar system's giant planets.
		The rings of Uranus were discovered from ground-based observations in 1977.
	antwrp.gsfc.nasa.gov /apod/uranus.html (353 words)

	Uranus
		Uranus' magnetic field is oriented approximately 59° away from its unusual axis of rotation.
		Uranus' atmosphere is mainly composed of hydrogen, helium and methane.
		Amazingly, the rings were discovered after only because astronomers trying to find out the composition of Uranus decided that when a star would pass Uranus then, the light coming back would help them figure out what Uranus composed of.
	library.thinkquest.org /18652/uranus.html (806 words)

	Spaceflight Now \| Breaking News \| Uranus' rings just one particle thick
		Upper: Uranus, its rings and moon Miranda at near infrared wavelengths of 2.2 microns.
		Uranus has extreme seasons because its rotational axis is tilted about 90 degrees from the plane of its orbit -- that is, its rotational axis lies nearly in the plane of its orbit.
		Perhaps most surprising is the team's discovery that in Uranus' main rings, the ring "particles," which were deduced to be large boulders from Voyager data, are distributed within a single layer.
	www.spaceflightnow.com /news/n0411/10uranusrings (2017 words)

	ABC News: More Rings Are Found Around Planet Uranus (Site not responding. Last check: )
		The faint, dusty rings orbit outside of Uranus' previously known rings, but within the orbits of its large moons, said Mark Showalter, an astronomer at the SETI Institute in Mountain View, Calif., who made the discovery.
		The newly discovered rings are made up of short-lived, faint bands of dust grains that are constantly being replenished by erosion of larger space bodies.
		Uranus, four times the diameter of Earth, is one of the solar system's giant, gaseous planets that also include Jupiter, Saturn and Neptune.
	abcnews.go.com /Technology/wireStory?id=1435143 (371 words)

	The Rings of Uranus
		The rings of Uranus (and some of its moons) are shown in the adjacent Hubble Space Telescope image.
		The rings were discovered from the Earth in 1977 when Uranus occulted (passed in front of) a star and it was noticed that there were dips in the brightness of the star before and after it passed behind the body of Uranus.
		It is speculated that this stability of the narrow rings may be due to small "shepherding satellites", as discussed in conjunction with Saturn's rings.
	csep10.phys.utk.edu /astr161/lect/uranus/rings.html (242 words)

	Uranus
		Uranus is the seventh planet from the Sun.
		However, Uranus does have a magnetic field that is tilted almost 60 degrees with respect to the axis of rotation and off center with respect to the planet (see schematic diagram comparing the axial tilts of Uranus and Earth).
		One ring may have been first observed in 1797 by astronomer by Sir William Herschel (1738-1822) due to a fortuitous orientation of the ring and the planet (more).
	www.solstation.com /stars/uranus.htm (938 words)

	Space Today Online - Solar System - Planet Uranus
		After passing Uranus, Voyager 2 sailed on toward a rendezvous within 3,000 miles of the planet Neptune in August 1989.
		Uranus' rings may be young remnants of a shattered moon.
		Ring gaps in some Voyager 2 photos, combined with a mysterious wave in one ring, may indicate two of the unseen moons could be 11 miles in diameter.
	www.spacetoday.org /SolSys/Uranus/UranusVoyager.html (760 words)

	ESO - 2002
		The photo shows Uranus surrounded by its rings and some of the moons, as they appear on a near-infrared image that was obtained in the K s -band (at wavelength 2.2 µm) with the ISAAC multi-mode instrument on the 8.2-m VLT ANTU telescope at the ESO Paranal Observatory (Chile).
		The rings of Uranus were discovered in 1977, from observations during a stellar occultation event by astronomer teams at the Kuiper Airborne Observatory (KAO) and the Perth Observatory (Australia).
		Uranus is unique among the planets of the solar system in having a tilted rotation axis that is close to the main solar system plane in which most planets move (the "Ecliptic").
	www.eso.org /outreach/press-rel/pr-2002/phot-31-02.html (843 words)

	Caption-Uranus' Rings
		Voyager 2 returned this picture of the Uranus rings on Jan 22, 1986, from a distance of 2.52 million kilometers (1.56 million miles).
		The next three in toward Uranus (delta, gamma, and eta) are much fainter and more narrow than the epsilon ring.
		Uranus' rings range in width from about 100 km (60 mi) at the widest part of the epsilon ring to only a few kilometers for most of the others.
	www.nasm.si.edu /research/ceps/rpif/uranus/Curanrings.html (187 words)

	Rings around Uranus captured in rare photo - Space.com- msnbc.com
		The images were snapped by ground and space telescopes as the planet's rings swiveled edge-on to Earth during a rare celestial alignment that occurs only once every 42 years.
		In fact, one of the inner rings, called zeta, appears in the new images to be several thousand kilometers farther from the planet than when it was discovered by Voyager.
		The rings were rediscovered in 1977 when they dimmed the light of a star behind Uranus.
	www.msnbc.msn.com /id/20412049/from/RS.1 (600 words)

	cbs2chicago.com - Hubble Finds Rings In Uranus Orbit
		The faint, dusty rings orbit outside of Uranus' previously known rings, but within the orbits of its large moons, said Mark Showalter, an astronomer at the SETI Institute in Mountain View, Calif., who made the discovery.
		The newly discovered rings are made up of short-lived, faint bands of dust grains that are constantly being replenished by erosion of larger space bodies.
		Uranus, four times the size of Earth, is one of the solar system's giant, gaseous planets that also include Jupiter, Saturn and Neptune.
	cbs2chicago.com /national/NASA.Hubble.Space.2.261277.html (371 words)

	BNSC - The rings of Uranus
		There are 10 rings altogether and in contrast with Saturn's rings, the rings of Uranus are very narrow.
		The brightest ring is known as the Epsilon ring.
		The rings of Uranus were the second to be discovered after the more famous rings of Saturn and we now know the rings are a common feature of several planets.
	www.bnsc.gov.uk /lzcontent.aspx?nid=4653 (98 words)

	Uranus (Site not responding. Last check: )
		Uranus is the seventh planet from the sun.
		Uranus is also tipped on its side, and spins differently than the other planets do.
		We were able to study the rings around Uranus, and saw that they are made of rocks and ice.
	www.promotega.org /vsu05033/uranus.htm (342 words)

	Uranus
		This view of Uranus was acquired by Voyager 2 in January 1986.
		This montage of images of the Uranian system was prepared from an assemblage of images taken by the Voyager 2 spacecraft during its Uranus encounter in January 1986.
		This artist's view shows Ariel in the forefront, Uranus rising behind, Umbriel off to the left, Miranda in the foreground to the right, Titania fading in the distance at the far right, and Oberon in its distant orbit at the top.
	www.iki.rssi.ru /solar/eng/uranus.htm (1533 words)

Try your search on: Qwika (all wikis)