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Topic: Thrymr moon


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  Natural satellite - Biocrawler   (Site not responding. Last check: 2007-10-03)
Most moons are assumed to have been formed out of the same collapsing region of protoplanetary disk that gave rise to its primary.
Several moons are thought to be captured foreign objects, fragments of larger moons shattered by large impacts, or (in the case of Earth's Moon) a portion of the planet itself blasted into orbit by a large impact.
Most moons in the solar system are tidally locked to their primaries; an exception is Saturn's moon Hyperion, which rotates chaotically due to a variety of external influences.
www.biocrawler.com /encyclopedia/Natural_satellite   (537 words)

  
 Phoebe (moon) - Encyclopedia, History, Geography and Biography
Phoebe (fee'-bee, IPA /ˈfiːbi/, Greek Φοίβη) is a moon of Saturn.
The outer moons can be broken down into two groups: Siarnaq's group (Kiviuq, Ijiraq, Paaliaq, Albiorix, Erriapo, Siarnaq and Tarvos) is inclined 33.5-46.5° whilst Phoebe's group (Phoebe, Skathi, Narvi, Mundilfari, Suttungr, Thrymr and Ymir) is retrograde and inclined 134.5-175.5°.
Both groups are fairly to highly eccentric, and none of their moons are expected to rotate synchronously as all the inner moons of Saturn do (except for Hyperion).
www.arikah.net /encyclopedia/Phoebe_(moon)   (908 words)

  
 Thrymr (moon) - Bvio   (Site not responding. Last check: 2007-10-03)
'''Thrymr''' ("THRIM er") is a natural satellite of Saturn.
Thrymr is about 5.6 kilometers in diameter, and orbits Saturn at an average of 20,470,000 kilometers in a retrograde direction.
Thrymr may have formed from debris knocked off of Phoebe at some point in the past.
bvio.com /Bvio/index.php/Thrymr_(moon)   (136 words)

  
 NATURAL SATELLITE FACTS AND INFORMATION   (Site not responding. Last check: 2007-10-03)
Several moons are thought to be captured asteroids; others may be fragments of larger moons shattered by impacts, or (in the case of Earth's Moon) a portion of the planet itself blasted into orbit by a large impact.
Most moons in the solar system are tidally locked to their primaries, meaning that one side of the moon is always turned toward the planet.
Exceptions are Saturn's moon Hyperion, which rotates chaotically due to a variety of external influences, and the outermost moons of the gas giants, which are too far away to become 'locked' (an example is Saturn's moon Phoebe).
www.feefriend.com /natural_satellite   (491 words)

  
 Calypso (moon) - Encyclopedia, History, Geography and Biography
Calypso (kə-lip'-soe, IPA /kəˈlɪpso/, Greek Καλυψώ) is a moon of Saturn.
The moon Telesto resides in Tethys' leading Lagrangian point, 60 degrees ahead of Tethys.
Like many other small Saturnian moons and small asteroids it is irregularly shaped by overlapping large craters and appears to also have loose surface material capable of smoothing the appearance of craters.
www.arikah.com /encyclopedia/Calypso_(moon)   (157 words)

  
 Saturn
One theory, originally proposed by Édouard Roche in the 19th century, is that the rings were once a moon of Saturn whose orbit decayed until it came close enough to be ripped apart by tidal forces (see Roche limit).
A variation of this theory is that the moon disintegrated after being struck by a large comet or asteroid.
Due to the tidal forces of Saturn, the moons are currently not at the same position as they were when they were first formed (for a timeline of discovery dates, see Timeline of natural satellites).
www.juliantrubin.com /encyclopedia/astronomy/saturn.html   (3038 words)

  
 Encyclopedia: English: Pan_(moon) (Wikipedia)   (Site not responding. Last check: 2007-10-03)
The existence of such a moon in the Encke division was first predicted by Jeffrey N. Cuzzi and Jeffrey D. Scargle in 1985.
The moon was later found within 1° of the predicted position.
The search was undertaken by considering all Voyager 2 images and using a computer calculation to predict whether the moon would be visible under sufficiently favorable conditions in each one.
www.all-dictionaries.com /encyclopedia/EN/Pan_(moon)   (424 words)

  
 The Moons of the Solar System — Thrymr   (Site not responding. Last check: 2007-10-03)
The moon of Saturn – Thrymr (XXX) – was previously temporarily designated as S/2000 S7.
    Thrymr is one of three new satellites discovered since the →Voyager-2 Saturn system fly-by which occured 19 years ago (1981).
    The moon by this name is in elliptical retrograde orbit (→eccentricity e = 0.470) with a →semimajor axis a = 20,382,000 km.
republika.pl /ksiezyce/saturn/thrymr_en.html   (385 words)

  
 Astronomy Answers: AstronomyAnswerBook: Moons
Moons that are further away from the Sun tend to have more ice than moons that are closer to the Sun.
Our Moon and the moons of Mars have no ice at all (except perhaps in deep craters near the poles), but the moon Europa of Jupiter has a layer of ice that is many kilometers thick.
Moons and planets are formed from numerous large and small fragments that collide with each other and sometimes partially stick together.
www.astro.uu.nl /~strous/AA/en/antwoorden/manen.html   (2267 words)

  
 Twelve New Moons for Saturn - Planetary News | The Planetary Society
But astronomers at the University of Hawaii have followed up on many previous moon discoveries with a dozen new satellites at Saturn, bringing the total count to 49 (although the status of three of the new moons identified by Cassini is in doubt).
In fact, the identification of three of them as moons is not yet certain; they could have just been transient clumps in the rings, long-lived enough for Cassini to spot them in a sequence of ring images, but dissipating later.
Four are tiny bodies that accompany larger moons in their orbits, sitting in dynamically stable "Lagrange points" 60 degrees ahead of or behind the bigger moons.
www.planetary.org /news/2005/0503_Twelve_New_Moons_for_Saturn.html   (473 words)

  
 Britain.tv Wikipedia - Solar system
Asteroid moons are asteroids that orbit larger asteroids.
Prior to the 2006 redefinitions, Charon was considered a moon of Pluto, but in light of the redefinition it is unclear whether Charon will continue to be classified as a moon of Pluto or as a dwarf planet itself.
He discovered that the Moon was cratered, that the Sun was marked with sunspots, and that Jupiter had four satellites in orbit around it.
www.britain.tv /wikipedia.php?title=Solar_system   (6751 words)

  
 Britain.tv Wikipedia - Titan (moon)
It is roughly 50% larger than our own moon by diameter, and is larger by diameter and mass than all known dwarf planets.
Titan's diameter and mass (and thus its density) are similar to Jovian moons Ganymede and Callisto.
Though similar in composition to Rhea and the rest of Saturn's moons, it is denser due to gravitational compression.
www.britain.tv /wikipedia.php?title=Titan_(moon)   (3983 words)

  
 Mimas (moon)   (Site not responding. Last check: 2007-10-03)
Due to the tidal forces acting on it, the moon is not perfectly spherical; its longest axis is about 10% longer than the shortest.
Herschel's diameter is almost a third of the moon's own diameter; its walls are approximately 5 km high, parts of its floor measure 10 km deep, and its central peak rises 6 km above the crater floor.
Mimas is responsible for clearing the material from the Cassini Division, the gap between Saturn's two widest rings, A Ring and B Ring.
www.tocatch.info /en/Mimas_(moon).htm   (744 words)

  
 ooBdoo
Some gaps are cleared out by the passage of tiny moonlets such as Pan, many more of which may yet be discovered, and some ringlets seem to be maintained by the gravitational effects of small shepherd satellites such as Prometheus and Pandora.
The precise figure is uncertain as the orbiting chunks of ice in Saturn's rings are all technically moons, and it is difficult to draw a distinction between a large ring particle and a tiny moon.
Saturn's rings cut across an eerie scene that is ruled by Titan's luminous crescent and globe-encircling haze, broken by the small moon Enceladus, whose icy jets are dimly visible at its south pole.
www.oobdoo.com /wikipedia/?title=Saturn   (2823 words)

  
 On This and Other Moons
If the sizes of the moons are expressed relative to their primary (the planet they orbit) there are still more surprises.
Being close to Jupiter (it is the innermost of the Galilean moons) the planet's massive gravity stretches the moon by some 100m and locks its rotation so the same side always faces the planet.
When it was discovered in 1978 it was realised that images previously thought to be of just Pluto had actually represented both the planet and its huge moon, and estimates of the planet's size had to be revised downwards.
www.inconstantmoon.com /cyc_moon.htm   (1127 words)

  
 Natural satellite Biography,info   (Site not responding. Last check: 2007-10-03)
Moons orbiting relatively close to the planet on prograde orbits (regular satellites) are believed to have been formed out of the same collapsing region of protoplanetary disk that gave rise to its primary.
Most regular moons in the solar system are tidally locked to their primaries, meaning that one side of the moon is always turned toward the planet.
In addition to the moons of the various planets there are also over 80 known moons of the dwarf planets, asteroids and other small solar system bodies.
www.parsnava.com /biography/sdmc_Natural_satellite   (1496 words)

  
 Saturn
The moons, Rhea and Dione, appear as blue dots to the south and southeast of Saturn, respectively.
Saturn and two of its moons, Tethys (above) and Dione, were photographed by Voyager 1 on November 3, 1980, from a distance of 13 million kilometers (8 million miles).
Two of Saturn's icy moons are visible as tiny starlike objects in or near the ring plane.
www.solarviews.com /eng/saturn.htm   (2199 words)

  
 Natural satellite   (Site not responding. Last check: 2007-10-03)
Most moons are assumed to have been out of the same collapsing region of protoplanetary disk that gave rise to its primary.
Several moons are thought to captured foreign objects fragments of larger moons by large impacts or (in the case Earth's Moon) a portion of the planet itself into orbit by a large impact.
Most moons in the solar system are tidally locked to their primaries; an exception is Saturn 's moon Hyperion which rotates chaotically due to a of external influences.
www.freeglossary.com /Natural_satellite   (542 words)

  
 Saturn's Moons
Most of the moons, which are small, were probably captured asteroids, and did not form with Saturn.
This is a unique moon because it has a huge crater that covers fully one quarter of its entire surface.
In fact, its clouds are so thick that the moon is like Venus; it is impossible to see the ground.
filer.case.edu /~sjr16/saturn_moons.html   (467 words)

  
 Tethys (moon) information information - Search.com
The exact cause of the darkness of the belt is unknown but a possible interpretation comes from recent Galileo orbiter images of Jupiter's moons Ganymede and Callisto, both of which exhibit light polar caps that are made from bright ice deposits on pole-facing slopes of craters.
The western hemisphere of Tethys is dominated by a huge impact crater called Odysseus, whose 400 km diameter is nearly 2/5 of that of Tethys itself.
It is thought that Ithaca Chasma formed as Tethys' internal liquid water solidified, causing the moon to expand and cracking the surface to accommodate the extra volume within.
domainhelp.search.com /reference/Tethys_(moon)   (609 words)

  
 Saturn's natural satellites - Wikipedia, the free encyclopedia
Moons massive enough for their surfaces to have collapsed into a spheroid are highlighted in light purple.
The Inuit group are five prograde outer moons that are similar enough in their distances from Saturn and their orbital inclinations that they can be considered a group.
The Norse group are 18 retrograde outer moons that are similar enough in their distance from Saturn to be considered a group.
en.wikipedia.org /wiki/Saturn's_natural_satellites   (1323 words)

  
 Adler Planetarium / CyberSpace / Planets / Saturn
Trojan Moons are not named so much for their relationship to Troy, but rather take their name from the unique mathematical nature of their orbits in relation to one another.
This group consists of a cluster of five outer moons far enough away from Saturn in both their orbits and orbital inclinations to be considered a distinct group.
This group of eighteen outer moons is like the Inuit group in that it is classified as a distinct cluster of outer moons.
www.adlerplanetarium.org /cyberspace/planets/saturn/moons.html   (916 words)

  
 Epimetheus (moon)
Astronomers assumed that there was only one body in that orbit, and accordingly had a hard time figuring out their orbital characteristics; it is obviously impossible to reconcile the observations of two distinct objects as a single object.
Since closer orbits have higher velocities the two moons must inevitably approach each other, and since Epimetheus' diameter is 115 km and Janus' is 178 km it would seem at first glance that a collision is also inevitable.
But as the inner moon catches up with the outer moon their mutual gravitational attraction boosts the inner moon's momentum and raises its orbit, causing it to slow down.
www.mlahanas.de /Greeks/Astro/Epimetheus.html   (558 words)

  
 Saturn Moons and Rings
The moon Titan is one of the few moons in the solar system with a significant atmosphere.
Other unusual moons of Saturn include the "Death Star" shaped Mimas, the half-fl, half-white Iapetus, and the garbage-can shaped Hyperion.
Most of the others are small moons and are essentially large rocks or gravel piles in space.
www.windows.ucar.edu /tour/link=/saturn/moons_and_rings.html&edu=high   (231 words)

  
 NASA's Solar System Exploration: Planets: Saturn: Moons
The number of known moons soon increased with high-resolution imaging techniques used on ground-based telescopes.
Some small moons are trapped in the same orbits as Tethys or Dione.
At 5,150 kilometers (3,200 miles) across, it is the second largest moon in the solar system.
solarsystem.nasa.gov /planets/profile.cfm?Object=Saturn&Display=Moons   (649 words)

  
 NASA's Solar System Exploration: Planets: Saturn: Moons: Mimas
One of the craters, named Herschel, is surprisingly large in comparison to the size of the moon.
The crater is 130 kilometers (80 miles) wide, one-third the diameter of Mimas.
This impact probably came close to disintegrating the moon.
solarsystem.nasa.gov /planets/profile.cfm?Object=Mimas   (235 words)

  
 Planet Saturn's Moons: Thrymr
Thrymr is a moon of the planet Saturn.
For a listing of other moons, see Moons of the planets.
This moon is too faint to be viewed in any telescopes.
www.go-astronomy.com /planets/saturn-moon-thrymr.htm   (39 words)

  
 Saturn Moons and Rings
Saturn's moon Titan is one of the few moons in the Solar System with much of an atmosphere.
The other medium-sized moons of Saturn are Rhea, Dione, Tethys, Enceladus, Janus and Epimetheus.
Most of the others are small moons which are basically large rocks in space.
www.windows.ucar.edu /tour/link=/saturn/moons_and_rings.html   (268 words)

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