Enceladus (moon)
Enceladus
larger version Discovery Discovered by
William Herschel Discovered on
August 28 1789 Orbital characteristics Semimajor axis
237,948 km Eccentricity
0.0047 C. C. Porco et al. (2006).
Enceladus
Related Category: Astronomy: General
(nsl´ds), in astronomy, one of the 18 named moons, or natural satellites, of Saturn.
Enceladus
Saturn II
Enceladus ("en SEL a dus") is the eighth of Saturn's known satellites: orbit: 238,020 km from Saturn diameter: 498 km mass: 7.30e19 kg ...
Jets of water vapour spewing from the south pole of Saturn's moon Enceladus at rates of around 250 kilograms every second are what feed this torus.
Enceladus
Saturn II
Enceladus [en-SELL-ah-dus] is one of the innermost moons of Saturn. It is quite similar in size to Mimas but has a smoother, brighter surface. Enceladus reflects almost 100 percent of the sunlight that strikes it.
Enceladus
Third satellite of Saturn, about 500 km in diameter. Orbital period 1.37 days. Discovered by Herschel in 1789.
Encke's Comet ...
Enceladus, one of the moons of Saturn, appears to hover just above the planet's rings in this recent image from the Cassini spacecraft, which is orbiting Saturn.
Enceladus, which is suspected of possible volcanism, has a highly reflecting surface, with a normal reflectance exceeding that of newly fallen snow (see Figure 49).
Enceladus
The eighth moon orbiting Saturn is Enceladus. In Greek mythology Enceladus was a Titan who was defeated in battle and buried under Mount Etna by Athena.
Enceladus (moon)
'Enceladus' , is the sixth-largest Moons of Saturn of Saturn . It was discovered in 1789 by William Herschel.
Enceladus has a very bright surface making it one of the shiniest objects in the Solar System. It may have active water volcanoes. About as wide as Arizona, the moon is covered with water ice that reflects sunlight like freshly fallen snow.
Enceladus -- In Greek and Roman mythology, a giant, son of Titan and Gaea. Buried by an angry Zeus under Mount Etna. When the giant hisses and thrusts out his fiery tongue, Mount Etna erupts.
ENCELADUS
Enceladus is one of the . It orbits at a mean distance of about 158,000 miles and revolves around in 33 hours. It has a diameter of about 400 miles.
ENCELADUS
Enceladus is one of the 18 moons of Saturn. It orbits at a mean distance of about 158,000 miles and revolves around Saturn in 33 hours. It has a diameter of about 400 miles.
Enceladus orbits just outside Mimas. Its size, mass, composition, and orbit are so similar to those of Mimas that one might guess that the two moons would also be very similar to each other in appearance and history. This is not so.
Enceladus is one of the most reflective objects in the solar system, with a surface of water ice. The region near the south pole is relatively young and has few impact craters, but large blocks of ice cover the ground.
Enceladus has some ice flow features and some rather unusual surface features. Apart from Titan, it is the most interesting world around Saturn.
Enceladus rains water onto Saturn PhysOrg - July 26, 2011
ESA's Herschel space observatory has shown that water expelled from the moon Enceladus forms a giant torus of water vapor around Saturn.
Next out are Enceladus, Tethys, Telesto, Calypso, Helene, Dione, and Rhea (right). Dione looks very much like our moon, except that it contains ice. Tethys, Telesto, and Calypso all share the same orbit.
One of these moons, Enceladus, may still have some activity occuring, changing the appearance of its surface.
The five larger inner satellites-Mimas, Enceladus, Tethys, Dione, and Rhea-are roughly spherical in shape and composed mostly of water ice. Rocky material may constitute up to 40 percent of Dione's mass.
9 S Enceladus 249 7.30e19 1.12 .99 11.7 S Tethys 530 6.22e20 1.00 .9 10.2 S Telesto 15 ? ? .5 18.7 ? 17 x 14 x 13 Calypso 13 ? ? .6 19.0 ? 17 x 11 x 11 Dione 560 1.05e21 1.44 .7 10.4 S Helene 16 ? ? .7 18.4 ? 18 x 16 x 15 Rhea 764 2.31e21 1.24 .7 9.
Icy Enceladus orbits within the densest part of Saturn's E Ring, and has recently been shown to be the source of that ring's fine ice-particle makeup.
For very bright, solid, airless objects such as Saturn's moons Enceladus and Tethys (whose Bond albedo is close to one), a strong opposition effect combines with the high Bond albedo to give them a geometric albedo above unity (1.
By increasing proximity to Saturn, the middle moons are Iapetus, Hyperion, Titan, Tethys, Dione, Rhea, Enceladus, and Mimas.
In 1989 the Voyager 2 spacecraft observed cryovolcanoes (ice volcanoes) on Triton, a moon of Neptune, and in 2005 the Cassini-Huygens probe photographed fountains of frozen particles erupting from Enceladus, a moon of Saturn.
SATURN S_RINGS SYSTEM MIMAS ENCELADUS TETHYS DIONE RHEA TITAN HYPERION IAPETUS PHOEBE JANUS EPIMETHEUS PANDORA CALYPSO HELENE TELESTO or SATURN S_RINGS SYSTEM MIMAS ENCELADUS TETHYS DIONE RHEA TITAN HYPERION IAPETUS PHOEBE JANUS EPIMETHEUS PANDORA ...
Icy satellites Does the water ice moon Enceladus have an internal heat source that erases impact craters? Why is Iapetus white as snow on one half and black as asphalt on the other?
Cassini Education programs ...
Saturn's E ring lies outside Saturn's Roche limit and is most concentrated at the orbit of the icy moon, Enceladus. Eruptions of water vapor from Enceladus probably are the source of the E ring material.
In the outer solar system, the moons Europa, Ganymede and Callisto at Jupiter and Titan and Enceladus at Saturn all harbor some of the key ingredients for life and have been targeted for detailed study by robotic spacecraft.
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Sponsors ...
Other moons of Saturn include Mimas, which has an impact crater 1/4 the diameter of the moon, Enceladus, which may be geologically active because of tidal heating by Saturn, Tethys, ...
Tethys (named after a Greek sea goddess) and Dione (a daughter of Zeus) Mimas, and Enceladus (son of the god Titan) are the names of four of Saturn's other moons. The planet was named in the 6th century after the Roman god of agriculture.
Saturn's known moons are (from nearest to furthest from the planet): Pan, Atlas, Prometheus, Pandora, Epimetheus, Janus, Mimas, Enceladus, Tethys, Telesto, Calypso, Dione, Helene, Rhea, Titan, Hyperion, Iapetus, and Phoebe.
Daniel Kirkwood (1814-1895) was an American astronomer who discovered the radial gaps in the asteroid belt in 1866 (now known as the Kirkwood gaps). Kirkwood also hypothesized that Saturn's moon Enceladus creates the Cassini division with its ...
It was discovered by Cassini in 1675. The period of a particle in Cassini's division is about two-thirds that of Janus, one-half that of Mimas, one-third that of Enceladus, and one-quarter that of Tethys. [H76]
Cas A (3C 461) ...
The E ring is concentrated at the orbit of Enceladus, and particles from cryovolcanism on this moon are probably the source of the E ring material.
The satellites also differ significantly in composition. The Moon, for example, consists almost entirely of rocky material. On the other hand, the composition of Saturn's Enceladus is 50 percent or more ice.
mirror, used on the " frontview " plan, Mimas and Enceladus, the innermost Saturnian moons, were brought to view on the 28th of August and the 17th of September 1789.
 See also: Saturn, Moon, Solar, Solar System, Orbit
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