Dione
Related Category: Astronomy: General
(d´n), in astronomy, one of the 18 named moons, or natural satellites, of Saturn.
Dione (moon)
Dione
Dione against the shadow of Saturn's rings Discovery Discovered by
Giovanni Cassini Discovered in
March 21, 1684 Orbital characteristics Semimajor axis
377,396 km Eccentricity
0.0022 [1] Orbital period
2.
Dione
Saturn IV
Dione ( "dy OH nee" ) is the twelfth of Saturn's known satellites: orbit: 377,400 km from Saturn diameter: 1120 km mass: 1.05e21 kg ...
Dione
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Dione's icy surface includes heavily cratered terrain, moderately cratered plains, lightly cratered plains, and wispy material. The heavily cratered terrain has numerous craters greater than 100 kilometers in diameter.
Dione
Cassini made a close flyby of the moon Dione in October 2005, passing just 500 km above its surface. Like most of the other moons, it has a surface largely made up of water ice.
Dione
Fifth satellite of Saturn. Radius about 440 km. P = 4.5 days. Discovered by Cassini in 1684.
Diopter ...
Dione, one of the moons of Saturn, passes in front of the larger moon Titan in this image from the Cassini spacecraft, which has been orbiting Saturn since 2004. Dione has no atmosphere, and its surface is covered with ice.
DIONE
Dione is one of the the . It has a diameter of about 600 miles (1,120 km). It orbits at a mean distance of about 235,000 miles from , revolving around the planet in about 65.75 hours.
DIONE
Dione is one of the the 18 moons of Saturn. It has a diameter of about 600 miles (1,120 km). It orbits at a mean distance of about 235,000 miles from Saturn, revolving around the planet in about 65.75 hours.
Dione -- In Greek mythology, the mother of Aphrodite, and daughter of Zeus.
drift -- A general term for all rock debris transported from one place and deposited in another, and distinguished from solid bedrock.
Dione was the mother of Venus in Greek Mythology.
Helene
Helene is the thirteenth of Saturn's moons. It was discovered by Lecacheux and Laques in 1980. Not much is known about this moon.
Dione and Rhea have wispy white markings on one side.
Enceladus has a very bright surface making it one of the shiniest objects in the Solar System. It may have active water volcanoes.
Dione (NASA Thesaurus / NASA SP-7, 1965) A satellite of Saturn orbiting at a mean distance of 378,000 kilometers. dioptric light (NASA SP-7, 1965) A light concentrated into a collimated beam by means of refracting lenses or prisms.
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.
This new belt, now known as the ‘Dione belt', lasted for a few weeks after every storm before Dione itself absorbed the charged particles swept into Saturn's magnetosphere from the solar wind.
Inside Rhea's orbit lie the orbits of Tethys and Dione. These two moons are comparable in size and have masses somewhat less than half the mass of Rhea.
The Saturnian moon Dione also has two Lagrangian co-orbitals, Helene at its L4 point and Polydeuces at L5.
By increasing proximity to Saturn, the middle moons are Iapetus, Hyperion, Titan, Tethys, Dione, Rhea, Enceladus, and Mimas.
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 ...
The first pair of images shows Dione, near the upper middle of the frames. Two smaller moons, Pandora (the brighter one closer to Saturn) and Prometheus, appear as if they're touching the F Ring.
List of geological features on Dione
List of geological features on Rhea
List of geological features on Iapetus
List of craters on Puck
List of geological features on Miranda
List of geological features on Ariel
List of craters on Umbriel ...
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.
Either she was the daughter of Jupiter and Dione, or she was made from the sea-foam on Saturn's castrated testes. Most Romans and Greeks seem to have favoured the former story, although the latter sounds much cooler.
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.
Some of the names are possibly familiar to you - Pan, Daphnis, Atlas, Prometheus, Pandora, Epimetheus, Janus, Mimas, Methone, Pallene, Enceladus, Tethys, Telesto, Calypso, Dione, Helene, Polydeuces, Rhea, Titan, Hyperion, Iapetus, Kiviuq, Ijiraq, ...
Some time later, Giovanni Domenico Cassini discovered four other moons: Iapetus, Rhea, Tethys and Dione.
In 1675, Cassini also discovered the gap now known as the Cassini Division.
Helene has a radius of about 18x16x15 km and is irregularly shaped. Helene orbits at about 377,400 km from Saturn, leading Dione by 60°. Its orbital period is 2.74 days. Helene was discovered by Discovered: P. Laques & J. Lecacheus in 1980.
Dodona in Epirus in northwestern Greece, was a prehistoric oracle devoted to the Mother Goddess identified at other sites with Rhea or Gaia , but here called Dione and later, in historical times also to the Greek mythology God Zeus....
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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.
Three of Saturn's icy moons (Tethys, Dione, and Rhea) are visible as small dots of light at the bottom of the picture. The shadow of Tethys can be seen under Saturn's rings. (Courtesy of the Jet Propulsion Laboratory/NASA) ...
2010 in images taken by the Wide-Field Infrared Survey Explorer satellite. Although Trojans of Saturn have yet to be found, objects librating about Lagrangian points of the systems formed by Saturn and its moon Tethys and Saturn and its moon Dione ...
Other examples of Trojan bodies in the solar system include daughter satellites that orbit in the Trojan points of the Saturn-Tethys system, and an additional satellite (Helene) which orbits in the forward Trojan point of Saturn and Dione.
 See also: Saturn, Solar, Titan, Earth, Solar System
  
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