Would you like Wikipedia to always look as professional and up-to-date? Iapetus also has an unusual equatorial ridge that makes it appear like a walnut. Saturn's rings are clearly visible (from the other large moons they can only be seen edge-on).Side view of Iapetus's orbit (red) compared to the other large moons, showing its unusually high inclinationPolar view of Iapetus's orbit (red) compared to the other large moons of SaturnThe source code for the WIKI 2 extension is being checked by specialists of the Mozilla Foundation, Google, and Apple. Iapetus (/ aɪ ˈ æ p ɪ t ə s /; Greek: Ιαπετός), or occasionally Japetus / ˈ dʒ æ p ɪ t ə s /, [7] is the third-largest natural satellite of Saturn, eleventh-largest in the Solar System, [8] and the largest body in the Solar System known not to be in hydrostatic equilibrium. In Schek et al.
The puzzle is compounded by the fact that the dividing line between the two sides is inexplicably sharp.On the last day of 2004, Cassini made its first close encounter with Iapetus.
The leading hemisphere and sides are dark (A better hypothesis is that the dark material is lag (residue) from the However, a separate process of color segregation would be required to get the thermal feedback started. For the mythological figure, see View of Cassini Regio. We have created a browser extension. The large crater Schenk et al. Iapetus is best known for its dramatic 'two-tone' coloration, but recent discoveries by the Cassini mission have revealed several other unusual physical characteristics. Iapetus (“eye AP i tus” ) is the seventeenth of Saturn’s known satellites and the third largest: orbit: 3,561,300 km from Saturn diameter: 1460 km mass: 1.88e21 kg. Iapetus, Moon of Saturn. Iapetus is inclined almost 15 degrees.The Nine Planets has been online since 1994 and was one of the first multimedia websites that appeared on the World Wide Web.Take an interactive tour of the solar system, or browse the site to find fascinating information, facts, and data about our planets, the solar system, and beyond.
Roncevaux Terra is at the top (north); Saragossa Terra with its prominent basin Engelier, Iapetus's second largest, is at the bottom.Close-up of north polar region, with the large impact crater Falsaron near bottomThe color dichotomy of Iapetus. To help better understand this seemingly painted moon, NASA directed the robotic Cassini spacecraft orbiting Saturn to swoop within 2,000 kilometers in 2007.
This difference is so striking that Cassini noted that he could see Iapetus only on one side of Saturn and not on the other.One explanation of this is that the leading hemisphere is dusted with a coating of material knocked off of Phoebe or some other Saturnian body. One difficulty is to explain why it follows the equator almost perfectly. And as in the image to the left, along the edge of the dark area there are many craters where only one side is covered by the dark material; the boundary between the two regions isn’t so sharp after all. The initial dark material is thought to have been debris blasted by meteors off small outer moons in Light debris outside of Iapetus's orbit, either knocked free from the surface of a moon by The largest reservoir of such infalling material is Current triaxial measurements of Iapetus give it radial dimensions of 746 km à746 km à712 km (464 mi à464 mi à442 mi), with a mean radius of 734.5 ± 2.8 km (456.4 ± 1.7 mi).It is not clear how the ridge formed. Iapetus (Greek mythology) A Titan, the son of Uranus and Gaia, and father of Atlas, Prometheus, Epimetheus, and Menoetius.
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