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Topic: Rhea moon


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In the News (Tue 16 Jul 19)

  
 Rhea (moon) - Encyclopedia.WorldSearch   (Site not responding. Last check: 2007-10-07)
Rhea (ree'-a) is the second largest moon of Saturn and was discovered in 1672 by Giovanni Domenico Cassini.
Rhea is named after the titan Rhea of Greek mythology.
The Cassini-Huygens orbiter is due to perform a flyby of Rhea on November 25, 2005.
encyclopedia.worldsearch.com /rhea_(moon).htm   (378 words)

  
 Rhea (moon) - Wikipedia, the free encyclopedia
Rhea (ree'-a, Greek ‘Ρέα) is the second largest moon of Saturn and was discovered in 1672 by Giovanni Domenico Cassini.
The temperature on Rhea is 99 K (−174°C) in direct sunlight and between 73 K (−200°C) and 53 K (−220°C) in the shade.
The Cassini orbiter is due to perform a flyby of Rhea on November 25, 2005.
www.wikipedia.org /wiki/Rhea+(moon)   (407 words)

  
 rhea (moon)   (Site not responding. Last check: 2007-10-07)
Rhea is the second largest moon of Saturn.
The temperature on Rhea is -174°C in direct sunlight and between -200°C and -220°C in the shade.
Its surface can be divided into two geologically different areas based on crater density; the first area contains craters which are larger than 40 kilometers in diameter, whereas the second area, in parts of the polar and equatorial regions, has craters under 40 kilometers in diameter.
www.yourencyclopedia.net /Rhea_(moon).html   (275 words)

  
 Rhea (maan) -- Ontdekking Ontdekt doorGiovanni Cassini Ontdekt in167...   (Site not responding. Last check: 2007-10-07)
Rhea lijkt op Dione, met verschil tussen het voorste en het achterste halfrond, iets wat waarschijnlijk betekent dat ze een vergelijkbare samenstelling en geschiedenis hebben.
De temperatuur op Rhea is -174 °C in de zon en tussen -200 °C en -220 °C in de schaduw.
Rhea is bedekt met inslagkraters en heeft heldere slierten op het oppervlak.
rhea-maan.nl.tracking24.net   (300 words)

  
 Saturn's Moon Rhea
The temperature on Rhea is -174°C (-281°F) in direct sunlight and between -200°C and -220°C (-328°F and -364°F) in the shade.
The image was taken in visible light with the Cassini spacecraft narrow-angle camera on April 14, 2005, at a distance of approximately 247,000 kilometers (153,000 miles) from Rhea and at a Sun-Rhea-spacecraft, or phase angle of 70 degrees.
This image of Rhea was acquired by the Voyager 1 spacecraft on November 11, 1980.
www.solarviews.com /eng/rhea.htm   (1223 words)

  
 Encyclopedia: Titan (moon)
Moons of solar system scaled to Earths Moon The common noun moon (not capitalized) is used to mean any natural satellite of the other planets.
Though similar in composition to Rhea and the rest of Saturn's moons, it is denser due to gravitational compression.
Titan is the only known moon with a fully developed atmosphere that consists of more than just trace gases.
www.nationmaster.com /encyclopedia/Titan-(moon)   (8986 words)

  
 Rhea (Mond) - netlexikon
Rhea umkreist Saturn in einem mittleren Abstand von 527.040 km in 108 Stunden und 25 Minuten.
Rhea rotiert in 108 Stunden und 25 Minuten um die eigene Achse und weist damit, wie der Erdmond, eine gebundene Rotation auf.
Rhea gleicht in ihrer Zusammensetzung, der Albedo und den Strukturen ihrer Oberfläche dem Saturnmond Dione.
www.lexikon-definition.de /Rhea-%28Mond%29.html   (441 words)

  
 TPS: Saturn's moon Rhea   (Site not responding. Last check: 2007-10-07)
Rhea is the largest of Saturn's medium-sized satellites; only Titan is bigger.
Rhea reveals itself to be one of the most heavily cratered bodies in the solar system, its surface completely saturated.
The resolution of the full-size map is 833.4 m/pixel at the equator for the Mercator map and 509.6 m/pixel at the center of the polar maps.
www.spaceflight.planetary.org /saturn/rhea.html   (907 words)

  
 Rhea (moon)   (Site not responding. Last check: 2007-10-07)
Rhea's features resemble those of Dione with dissimilar leading and trailing hemispheres similar composition and histories.
Rhea is heavily cratered and has bright markings on its surface.
The Cassini-Huygens orbiter is due to perform a of Rhea on November 25 2005.
www.freeglossary.com /Rhea_(moon)   (571 words)

  
 Rhea (moon)   (Site not responding. Last check: 2007-10-07)
It was discovered in 1672 by Giovanni Cassini and named after the greek goddess Rhea.
The temperature on Rhea is -174 °C in direct sunlight and between -200 °C and -220 °C in the shade.
It is thought that these bright swaths may be material ejected from ice volcano es early in Rhea's history when it was still liquid inside.
www.serebella.com /encyclopedia/article-Rhea_(moon).html   (524 words)

  
 Encyclopedia: Rhea (moon)
Inclination is one of the six orbital parameters describing the shape and orientation of a celestial orbit and is the angular distance of the orbital plane from the plane of the reference (usually planets equator or the ecliptic), stated in degrees.
Rhea (she who flows) was the Titaness daughter of Uranus and of Gaia.
Helene (hel-e-nee, Greek ‘Ελένη) is a moon of Saturn.
www.nationmaster.com /encyclopedia/Rhea-(moon)   (2444 words)

  
 AllRefer.com - Rhea, in astronomy (Astronomy, General) - Encyclopedia
Rhea, in astronomy, one of the 18 named moons, or natural satellites, of Saturn.
The second largest of Saturn's moons, Rhea was discovered by the Italian-French astronomer Gian Domenico Cassini in 1672.
Rhea's density of 1.3 means that it is composed primarily of water ice, rocky material making up about a third of its mass.
reference.allrefer.com /encyclopedia/R/Rhea1.html   (257 words)

  
 The Moons of Saturn   (Site not responding. Last check: 2007-10-07)
Saturn's other moons have icy surfaces that are very cold so that ice is as rigid as rock and craters form from meteor impacts.
The mean densities of these moons are 1.0 to 1.5 g/cc, implying that they are probably mostly ice, though they may have some rocky consituents.
In various instances now we know that ring structures in the Jovian planets are stabilized by small "shepherd moons" that orbit in or near the rings and stabilize them by their gravitational influences.
csep10.phys.utk.edu /astr161/lect/saturn/moons.html   (832 words)

  
 Rhea   (Site not responding. Last check: 2007-10-07)
Rhea ("REE a") is the fourteenth of Saturn's known satellites
In Greek mythology Rhea was the sister and wife of Cronus (Saturn) and the mother of Demeter, Hades (Pluto), Hera, Hestia, Poseidon (Neptune), and Zeus (Jupiter).
Rhea is composed primarily of water ice with rock making up less than 1/3 of its mass.
www.nineplanets.org /rhea.html   (163 words)

  
 Rhea Moon   (Site not responding. Last check: 2007-10-07)
Rhea Perlman, despite serving drinks for 11 years on "Cheers," passes out first and...
This half-lit view beautifully captures the ponderously old and cratered surface of Saturn's icy moon Rhea.
Saturn's moon Rhea is an alien ice world, but in this frame-filling view it is vaguely familiar.
www.wikiverse.org /rhea-moon   (369 words)

  
 Saturn's Moon Rhea   (Site not responding. Last check: 2007-10-07)
Rhea is an icy body with a density of 1.33 gm/cm
The temperature on Rhea is -174°C with illumation from the Sun and between -200°C and -220°C (-328°F and -364°F) in the shade.
Rhea is heavily cratered with bright whispy markings.
astro.if.ufrgs.br /solar/rhea.htm   (229 words)

  
 Rhea (moon)   (Site not responding. Last check: 2007-10-07)
Rhea is the second largest moon of Saturn and was discovered in 1672 by Giovanni Cassini.
It is named after the titan Rhea of Greek mythology.
It is also designated Saturn V. The name "Rhea" and the names of all seven satellites of Saturn then known were suggested by John Herschel in his 1847 publication Results of Astronomical Observations made at the Cape of Good Hope.
www.sciencedaily.com /encyclopedia/rhea__moon_   (366 words)

  
 Rhea (moon) . Inclination . Kelvin . Greek mythology . Moon . Mercury (planet) . November 25
Rhea s features resemble those of Dione moon Dione, with dissimilar leading and trailing hemispheres, suggesting similar composition and histories.
Once Mimas moon Mimas and Enceladus moon Enceladus were discovered, in 1789, the numbering scheme was extended to Saturn VII.
The angular diameter of the Moon from Earth is about one half of one degree.
www.uk.kunsimuna.net /Rhea_%28moon%29   (465 words)

  
 Rhea Up Close
The icy, cratered surface of Saturn's moon Rhea is seen in this high-resolution image taken by Voyager l on November l1, 1980, at a range of 85,000 kilometers (52,800 miles) as the spacecraft passed over the satellite's north pole.
The craters and landscape resemble those on the Moon and Mercury, and are unlike the flattened crater forms that have collapsed in the soft icy crusts of the Jovian moons Callisto, Ganymede and Europa.
Scientists believe that Rhea (which is just l,600 kilometers or 995 miles in diameter, compared to the 5,500-kilometer or 3,400- mile diameter of Ganymede) froze and became rigid, behaving like a rocky surface, very early in its history.
www.solarviews.com /cap/sat/rhea2.htm   (191 words)

  
 APOD: 2005 February 15 - Saturns Moon Rhea from Cassini   (Site not responding. Last check: 2007-10-07)
Rhea is composed mostly of water ice, but likely has a
Rhea's rotation and orbit are locked together, just like Earth's Moon, so that one side always faces
Rhea's leading surface is much more heavily cratered than the trailing surface, pictured above.
antwrp.gsfc.nasa.gov /apod/ap050215.html   (154 words)

  
 Rhea - InformationBlast
In Greek mythology, Rhea was the sister and wife of Cronus and the mother of many of the other major gods of the pantheon, see Rhea (mythology).
In biology, Rheas are a species of large flightless bird native to South America, see Rhea (bird).
In astronomy, Rhea is the second largest moon of Saturn, see Rhea (moon).
www.informationblast.com /Rhea.html   (82 words)

  
 APOD: 2003 June 8 - Rhea: Saturn's Second Largest Moon   (Site not responding. Last check: 2007-10-07)
Explanation: Rhea is the second largest moon of Saturn, behind Titan, and the largest without an atmosphere.
Rhea's rotation and orbit are locked together (just like Earth's Moon) so that one side always faces Saturn.
Rhea's leading surface is much more heavily cratered than its trailing surface.
antwrp.gsfc.nasa.gov /apod/ap030608.html   (126 words)

  
 Rhea (moon) -- Facts, Info, and Encyclopedia article   (Site not responding. Last check: 2007-10-07)
Rhea's features resemble those of (Click link for more info and facts about Dione) Dione, with dissimilar leading and trailing hemispheres, suggesting similar composition and histories.
As on (Click link for more info and facts about Callisto) Callisto, the craters lack the high relief features seen on the (Any natural satellite of a planet) Moon and (A heavy silvery toxic univalent and bivalent metallic element; the only metal that is liquid at ordinary temperatures) Mercury.
It is thought that these bright swaths may be material ejected from ice (A mountain formed by volcanic material) volcanoes early in Rhea's history when it was still liquid inside.
www.absoluteastronomy.com /encyclopedia/R/Rh/Rhea_(moon).htm   (691 words)

  
 Above Rhea's South Pole
Rhea's icy surface is so heavily saturated with impact craters that the moon's limb, or edge, has a rugged, bumpy appearance.
The bright splotch seen here near the upper right is impact material (or ejecta) from a relatively fresh crater (see PIA06648 for another view of this bright feature).
The image was taken with the Cassini spacecraft narrow-angle camera on July 14, 2005, at a distance of approximately 342,000 kilometers (212,000 miles) from Rhea and at a Sun-Rhea-spacecraft, or phase, angle of 36 degrees.
www.solarviews.com /cap/pia/PIA07572.htm   (138 words)

  
 MSN Encarta - Rhea (astronomy)
Rhea (astronomy), large moon of the planet Saturn.
Rhea is the 14th known satellite from the planet.
The moon orbits Saturn at a distance of about...
ca.encarta.msn.com /encyclopedia_761587784/Rhea_(astronomy).html   (76 words)

  
 Saturn's Moon, Rhea   (Site not responding. Last check: 2007-10-07)
Rhea is the second largest of Saturn's moons, approximately 950 miles in diameter.
Its density is slightly lower, but still greater than that of most Saturnian moons, indicating that it is made mostly of ice, but has a substantial minority of heavier materials.
Similar features probably exist on many other moons in the Solar System, but in most cases we don't have close-up images of the moons, and such small detail is not visible.
www.cseligman.com /text/moons/saturn/rhea.htm   (297 words)

  
 Catalog Page for PIA02240
The area shown is one of the most heavily cratered on Rhea, and indicates an ancient surface dating back to the period immediately following the formation of the planets 4.5 billion years ago.
Other areas of Rhea's surface are deficient in the very large (100 kilometers or 62 miles or larger) craters, indicating a change in the nature of the impacting bodies and an early period of surface activity.
White areas on the edges of several of the craters in the upper right corner are probably fresh ice exposed on steep slopes or possibly deposited by volatiles leaking from fractured regions.
photojournal.jpl.nasa.gov /catalog/PIA02240   (189 words)

  
 ESA - Cassini-Huygens - Impact on Saturn's moon Rhea
Saturn's moon Rhea shows off a bright, rayed crater near its eastern limb in this image from the NASA/ESA/ASI Cassini-Huygens spacecraft.
At 1528 kilometres across, it is the second largest moon orbiting Saturn.
The image was taken in visible light with the Cassini-Huygens spacecraft narrow-angle camera on 24 October 2004, at a distance of about 1.7 million kilometres from Rhea.
www.esa.int /SPECIALS/Cassini-Huygens/SEMVNVWJD1E_2.html   (127 words)

  
 Rhea: Saturn's Icy Moon   (Site not responding. Last check: 2007-10-07)
Of Saturn's 5 outermost moons, Titan, Hyperion, Iapetus, and Phoebe,
Ice water is seen mostly at the poles and inside ancient impact craters.
On the larger, outer moons, the surface has not changed much since the beginning of the solar system.
www.cvc.org /astronomy/rhea.htm   (491 words)

  
 ESA - Cassini-Huygens - Crescent moon Rhea   (Site not responding. Last check: 2007-10-07)
With a diameter of 1528 kilometres across, Rhea is Saturn's second largest moon.
The US Voyager spacecraft found that, like Dione, Rhea has one of its hemispheres covered with bright, wispy streaks which may be water frost.
The spacecraft is due to fly by Rhea at a distance of only 500 kilometres on 6 November 2005.
www.esrin.esa.it /SPECIALS/Cassini-Huygens/SEMINSV4QWD_2.html   (113 words)

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