These particles drift in the direction opposite to the rotation of the planet and preferentially impact areas on the leading hemisphere close to the equator. The band has an elliptical shape getting narrower as it approaches the trailing hemisphere.
Sfn The accretion process probably lasted for several thousand years before the moon was fully formed. The darkening of the trailing hemispheres can also be caused by the impact of plasma from the magnetosphere of Saturnwhich co-rotates with the planet.
Trenches and craters Although most of signs of impact on Tethys are relatively small, a giant one known as the Odysseus Crater covers nearly two-fifths of the moon's mile 1, km diameter.
They often occur as collisional families or groups. This allows scientists to establish a relative chronology for Tethys. Sfn Tethys was the most fully imaged Saturnian satellite by the Voyagers.
Many plains on Enceladus are fractured and intersected by systems of lineaments. It is thought that Ithaca Chasma formed as Tethys's internal liquid water solidified, causing the moon to expand and cracking the surface to accommodate the extra volume within. The team suggested the red might be due to chemical impurities, remainders of gas from the moon's interior, or features that could not be resolved in the image.
The modern names of all seven satellites of Saturn come from John Herschel son of William Herscheldiscoverer of Mimas and Enceladus. Scientists think that electrons bombarding the leading face of the satellite could have turned the region into hard-packed ice that changes temperature more slowly than the rest of the moon.
The latter can be a result of focusing the seismic waves produced by the impact in the center of the opposite hemisphere.
Sfn Cassini's observations allowed high-resolution maps of Tethys to be produced with the resolution of 0. Named after the Alkyonides of Greek mythology, they are some of the smallest moons in the Saturn system.
The subsurface ocean may have resulted from a 2: This allows scientists to establish a relative chronology for Tethys. The latter can be a result of focusing the seismic waves produced by the impact in the center of the opposite hemisphere.
This is most likely due to the viscous relaxation of the Tethyan icy crust over geologic time. Tethys' Pac-Man heat map was the second to be found in the solar system, only two years after Cassini noticed a similar configuration on Mimas.
List of quadrangles on Tethys Impact craters and chronology[ edit ] The majority of Tethyan impact craters are of a simple central peak type. There are also a number of tectonic features such as chasmata and troughs. The video game character configuration may have been created by the varying surfaces on the moon.
Tethys has no atmosphere, and keeps one face perpetually pointed toward its parent planet. The conditions in the Saturnian sub-nebula likely favored conversion of the molecular nitrogen and carbon monoxide into ammonia and methanerespectively.
Tethys, which orbitsmileskilometers out, was termed Saturn III, since it is the third most distant of the major satellites.
The cratered terrain is the oldest unit likely dating back to the Solar System formation 4. Color patterns Tethys - Red Arcs 11 April The surface of Tethys has a number of large-scale features distinguished by their color and sometimes brightness. They may have occurred, for instance, during the passage of Tethys through an orbital resonance with Dione or some other moon.
Its origin may be related to a deposition of bright ice particles from the E-ring onto the leading hemispheres and dark particles coming from outer satellites on the trailing hemispheres. Color patterns Tethys - Red Arcs 11 April The surface of Tethys has a number of large-scale features distinguished by their color and sometimes brightness.
The eccentricity of the orbits is shown by the segments extending from the pericenter to apocenter. Medium-sized moons of Saturn shown alongside Earth's Moon. Tethys Tethys was discovered by G. Cassini in Tethys is the 8th closest moon to Saturn, with a standoff distance ofkm.
It is one of the icy moons, similar to. Tethys was one of a pair of moons orbiting Saturn that was discovered by Giovanni Cassini in The photo of Saturn's moon Tethys was taken on April 14, and received on Earth April Tethys (or Saturn III) is a mid-sized moon of Saturn about 1, km (Template:Convert/round mi) across.
It was discovered by G. D. Cassini in and is named after the titan Tethys of Greek mythology. Tethys (or Saturn III) is a mid-sized moon of Saturn about 1, km ( mi) across.
It was discovered by G. D. Cassini in and is named after the titan Tethys of Greek mythology. Tethys has a low density of g/cm 3, the lowest of all the major moons in the Solar System, indicating that it is made of water ice with just a small fraction of elleandrblog.comciation: /ˈtiːθɪs/ or /ˈtɛθɪs/.
Tethys is Saturn's fifth largest moon. Its irregular shape is miles ( kilometers) in mean radius, with dimensions x x miles ( x x kilometers). This cold, airless and heavily scarred body is very similar to sister moons Dione and Rhea except that Tethys is not as heavily cratered as the other two.
Tethys or Saturn III is a mid-sized moon of Saturn about 1, km ( mi) across.
It was discovered by G. D. Cassini in and is named after the titan Tethys of Greek elleandrblog.com has a low density of g/cm, the lowest of all the major moons in the Solar System, indicating.Tethys mid sized moon of saturn discovered