"though the presence of ammonia on Titan would cause chemical reactions to proceed more slowly. Titan (moon) Titan is the largest moon of Saturn. It is the only moon known to have a dense atmosphere, and the only object in space, other than Earth, where clear evidence of stable bodies of surface liquid have been found. Titan is the sixth gravitationally rounded moon from Saturn. Frequently described as a planet-like moon, Titan is 50% larger than Earth's moon and 80% more massive. It is the second-largest moon in the Solar System after Jupiter's moon Ganymede, and is larger than the"
"the expansion continued, but some of the angular moment was transferred to Europa as the resonance caused its orbit to expand as well; the process continued until Europa encountered the 2:1 resonance with Ganymede. Eventually the drift rates of conjunctions between all three moons were synchronized and locked in the Laplace resonance. Ganymede is the largest and most massive moon in the Solar System. Its diameter of 5,268 km is 0.41 times that of Earth, 0.77 times that of Mars, 1.02 times that of Saturn's Titan (the second-largest moon), 1.08 times Mercury's, 1.09 times Callisto's, 1.45 times Io's and 1.51"
"Neith (crater) Neith crater is a crater on Jupiter's moon Ganymede, the largest moon in the solar system. Impact features like Neith have been called ""penepalimpsests"" by some investigators or ""dome craters"" by others and are considered to be transitional between craters and palimpsests. Palimpsests are bright, nearly circular patches that are believed to be remnant impact features. They occur also on Callisto, Ganymede's neighbor farther distant from Jupiter. The most striking feature in Neith is a large, circular dome about 45 km in diameter. The dome is surrounded by a wreath of rugged terrain. The wreath does not represent"
"1036 Ganymed 1036 Ganymed (), provisional designation """", is a stony asteroid on a highly eccentric orbit, classified as a near-Earth object of the Amor group. It was discovered by German astronomer Walter Baade at the Bergedorf Observatory in Hamburg on 23 October 1924, and named after Ganymede from Greek mythology. With a diameter of approximately , ""Ganymed"" is the largest of all near-Earth objects. The S-type asteroid has a rotation period of 10.3 hours. In October 2024, it will approach Earth at . ""Ganymed"" is an Amor asteroid, a subgroup of the near-Earth asteroids that approach the orbit of"
"closer to Jupiter; these serve as sources of the dust that makes up Jupiter's rings. The remainder of Jupiter's moons are irregular satellites whose prograde and retrograde orbits are much farther from Jupiter and have high inclinations and eccentricities. These moons were probably captured by Jupiter from solar orbits. Twenty-seven of the irregular satellites have not yet been officially named. The physical and orbital characteristics of the moons vary widely. The four Galileans are all over in diameter; the largest Galilean, Ganymede, is the ninth largest object in the Solar System, after the Sun and seven of the planets, Ganymede"
"2024. Due to the high eccentricity of its orbit, ""Ganymed"" is also Mars-crosser, intersecting the orbit of the Red Planet at 1.66 AU. On 16 December 2176, it will pass at a distance of from Mars. This minor planet was named after Ganymede from Greek mythology, using the German spelling. ""Ganymed"" was a Trojan prince abducted by Zeus to serve as cupbearer to the Greek gods. The name has also been given to Jupiter's third moon Ganymede discovered 1610 by Galilei. Owing to its early discovery date, ""Ganymed"" has a rich observational history. A 1931 paper published the absolute magnitude,"
"younger, but still ancient, regions with a large array of grooves and ridges. Ganymede has a high number of craters, but many are gone or barely visible due to its icy crust forming over them. The satellite has a thin oxygen atmosphere that includes O, O, and possibly O (ozone), and some atomic hydrogen. Callisto (Jupiter IV) is the fourth and last Galilean moon, and is the second largest of the four, and at 4820.6 kilometers in diameter, it is the third largest moon in the Solar System, and barely smaller than Mercury, though only a third of the latter's"
"These two actions placed the orbiter on its proper trajectory to tour the Jovian moons. The Jupiter orbit insertion maneuver involved an orbit around the planet, which is referred to as the spacecraft's ""zeroth"" orbit. The spacecraft's ""first,"" and by far longest, orbit around Jupiter followed the JOI and lasted nearly seven months. On 27 June 1996, this initial orbit culminated in a close encounter with Ganymede, the largest of the four Galilean satellites. After the first Jupiter orbit of seven months, subsequent orbits were much shorter, ranging from one to two and a half months. The orbiter tour included"
"seven days and three hours. Like most known moons, Ganymede is tidally locked, with one side always facing toward the planet, hence its day is seven days and three hours. Its orbit is very slightly eccentric and inclined to the Jovian equator, with the eccentricity and inclination changing quasi-periodically due to solar and planetary gravitational perturbations on a timescale of centuries. The ranges of change are 0.0009–0.0022 and 0.05–0.32°, respectively. These orbital variations cause the axial tilt (the angle between rotational and orbital axes) to vary between 0 and 0.33°. Ganymede participates in orbital resonances with Europa and Io: for"
"is 77% the diameter of Mars. Ganymede's size made it a popular location for early science fiction authors looking for locations beyond Mars that might be inhabitable by humans. In reality, Ganymede is a cold, icy, cratered world with a vanishingly thin atmosphere. Callisto is the outermost of the Galilean satellites. It is a large moon, only slightly smaller than the planet Mercury. It is cold, icy, and heavily cratered, with a very tenuous atmosphere. Despite its size and early discovery, it has not been featured in fiction as much as the other Galilean satellites. Amalthea, or Jupiter V, is"
"moon Ganymede has its own magnetosphere, even though its mass is only 0.025 . HD 69830 d was discovered in 2006 with the HARPS echelle spectrograph installed on the European Southern Observatory 3.6-meter telescope at La Silla Observatory, Chile. In the Halo video game series, a moon of HD 69830 d is the homeworld of the Kig-Yar (""Jackal"") species, a member species of the enemy, the Covenant Empire. HD 69830 d HD 69830 d is an exoplanet likely orbiting within the habitable zone of the star HD 69830, the outermost of three such planets discovered in the system. It is"
"disadvantages for colonization because of the severe radiation conditions prevailing in Jupiter's magnetosphere and the planet's particularly deep gravitational well. Jupiter would deliver about 36 Sv (3600 rem) per day to unshielded colonists at Io and about 5.4 Sv (540 rems) per day to unshielded colonists at Europa, which is a decisive aspect due to the fact that already an exposure to about 0.75 Sv over a period of a few days is enough to cause radiation poisoning, and about 5 Sv over a few days is fatal. Ganymede is the Solar System's largest moon and the Solar System's only"
"moons Io, Europa and Ganymede. The orbital semimajor axis is only 0.13 AU, around a third of the average distance between Mercury and the Sun, and is more eccentric than the orbit of any of the major planets of our solar system. Despite this, it is located in the inner regions of the system's habitable zone, since Gliese 876 is such an intrinsically faint star. A limitation of the radial velocity method used to detect Gliese 876 c is that only a lower limit on the planet's mass can be obtained. This is because the measured mass value depends on"
"Jupiter's moon Ganymede. During their voyages they encounter several instances of the Ring technology, which they fight with the giant mecha, called 'Shaft'. The technology of Shaft is mysterious and the mecha requires very special skills to be piloted. Along the way, they also encounter situations and people which make them question their nature as 'superior', and raise doubts about how 'perfect' their society really is. All episode titles are references to science-fiction books. Opening: Ending: Geneshaft The story revolves around the voyages of the ""Bilkis"" spaceship across the Solar system, and its crew of genetically engineered humans, as they"
"in diameter, 1.06 times that of the planet Mercury, 1.48 that of the Moon, and 0.40 that of Earth. Before the arrival of ""Voyager 1"" in 1980, Titan was thought to be slightly larger than Ganymede (diameter ) and thus the largest moon in the Solar System; this was an overestimation caused by Titan's dense, opaque atmosphere, which extends many kilometres above its surface and increases its apparent diameter. Titan's diameter and mass (and thus its density) are similar to those of the Jovian moons Ganymede and Callisto. Based on its bulk density of 1.88 g/cm, Titan's composition is half"
"88 months of travel. By 2033 the spacecraft should enter orbit around Ganymede for its close up science mission and becoming the first spacecraft to orbit a moon other than the moon of Earth. The selection of this mission for the L1 launch slot of ESA's Cosmic Vision science programme was announced on 2 May 2012. Its period of operations will overlap with NASA's ""Europa Clipper"" mission, also launching in 2022. The mission started as a reformulation of the Jupiter Ganymede Orbiter proposal, which was to be ESA's component of the cancelled Europa Jupiter System Mission—Laplace (EJSM-Laplace). It became a"
"moon Triton to be investigated around 2029. The proposed ""New Horizons 2"" mission (which was later scrapped) might also have done a close flyby of the Neptunian system. Neptune Neptune is the eighth and farthest known planet from the Sun in the Solar System. In the Solar System, it is the fourth-largest planet by diameter, the third-most-massive planet, and the densest giant planet. Neptune is 17 times the mass of Earth and is slightly more massive than its near-twin Uranus, which is 15 times the mass of Earth and slightly larger than Neptune. Neptune orbits the Sun once every 164.8"
"the Jupiter system in October 2029 after 88 months of travel. By 2033 the spacecraft should enter orbit around Ganymede, after completing various maneuvers around Jupiter and the other moons. Proposed instruments include cameras, spectrometers, magnetometers, and an ice-penetrating radar. The ""Jupiter Icy moons Explorer"" will perform detailed investigations on Ganymede as a planetary body and evaluate its potential to support life. Investigations of Europa and Callisto will complete a comparative picture of these Galilean moons. The three moons are thought to harbour internal liquid-water oceans, and so are central to understanding the habitability of icy worlds. The main science"
"on Ganymede, the largest moon of Jupiter, and who created the first 3D film in Argentina. The book also relates the adventures of contactee Francisco García, who in 1973 announced the landing in Argentina of fifty ships from Mars; presents a profile of the Argentine flying-saucer guru Pedro Romaniuk; and reviews the rumor disguised as news spread in 1968, according to which a ""Vidal"" couple had been teleported from Chascomús, in Argentina, to Mexico. ""Invasores..."" reconstructs as well the ""Peccinetti-Villegas case"" the alleged meeting of two casino employees from Mendoza with five humanoid beings who came out of a ship"
"Galilean satellites would be as bright as the full moon is on Earth; from Io to Callisto their apparent magnitudes would be: −11.2, −9.7, −9.4, and −7.0. Ganymede, the largest moon and third from Jupiter, is almost as bright as Io and Europa, but appears only half the size of Io. However, its great size means that it appears about 2″ larger than Europa. Also, a triple conjunction of Io, Europa and Ganymede would be impossible, because the Laplace resonance that they share prevents this. When two of the Galilean moons are aligned, the third is never less than 90"
"Earth from beyond, but do not cross it. It orbits the Sun at a distance of 1.2–4.1 AU once every 4 years and 4 months (1,587 days; semi-major axis of 2.66 AU). Its orbit has a high eccentricity of 0.53 and an inclination of 27° with respect to the ecliptic. The body's observation arc begins at the discovering observatory on 24 October 1924, the night after its official discovery observation. ""Ganymed"" has a minimum orbit intersection distance with Earth of , or 133 lunar distance. Its next pass of the Earth will be at a distance of on 13 October"
"Thebe itself. Explanatory notes Citations Cited sources Thebe (moon) Thebe ( ; ) also known as , is the fourth of Jupiter's moons by distance from the planet. It was discovered by Stephen P. Synnott in images from the ""Voyager 1"" space probe taken on March 5, 1979, while making its flyby of Jupiter. In 1983, it was officially named after the mythological nymph Thebe. The second largest of the inner satellites of Jupiter, Thebe orbits within the outer edge of the Thebe gossamer ring that is formed from dust ejected from its surface. It is irregularly shaped and reddish"
"Triton (moon) Triton is the largest natural satellite of the planet Neptune, and the first Neptunian moon to be discovered. The discovery was made on October 10, 1846, by English astronomer William Lassell. It is the only large moon in the Solar System with a retrograde orbit, an orbit in the direction opposite to its planet's rotation. At in diameter, it is the seventh-largest moon in the Solar System. Because of its retrograde orbit and composition similar to Pluto's, Triton is thought to have been a dwarf planet captured from the Kuiper belt. It has a surface of mostly frozen"
"sweep through the inner Solar System. In the asteroid belt these excite the eccentricities of the asteroids driving them onto orbits that intersect those of the terrestrial planets causing a more extended period of impacts by stony objects and removing roughly 90% of its mass. The number of planetesimals that would reach the Moon is consistent with the crater record from the LHB. However, the orbital distribution of the remaining asteroids does not match observations. In the outer Solar System the impacts onto Jupiter's moons are sufficient to trigger Ganymede's differentiation but not Callisto's. The impacts of icy planetesimals onto"
"Amalthea (moon) Amalthea ( ; ) is the third moon of Jupiter in order of distance from the planet. It was discovered on 9 September 1892, by Edward Emerson Barnard and named after Amalthea, a nymph in Greek mythology. It is also known as . Amalthea is in a close orbit around Jupiter and is within the outer edge of the Amalthea Gossamer Ring, which is formed from dust ejected from its surface. From its surface, Jupiter would appear 46.5 degrees in diameter. Amalthea is the largest of the inner satellites of Jupiter. Irregularly shaped and reddish in color, it"
"other planets and moons. Two were taken to Mars by the Viking program. In early 2005 the Cassini–Huygens mission delivered a specialized GC-MS instrument aboard the Huygens probe through the atmosphere of Titan, the largest moon of the planet Saturn. This instrument analyzed atmospheric samples along its descent trajectory and was able to vaporize and analyze samples of Titan's frozen, hydrocarbon covered surface once the probe had landed. These measurements compare the abundance of isotope(s) of each particle comparatively to earth's natural abundance. Also on board the Cassini–Huygens spacecraft was an ion and neutral mass spectrometer which had been taking"
"heat flux out of Ganymede is probably higher than that out of Callisto. Several probes flying by or orbiting Jupiter have explored Ganymede more closely, including four flybys in the 1970s, and multiple passes in the 1990s to 2000s. ""Pioneer 10"" approached in 1973 and ""Pioneer 11"" in 1974, and they returned information about the satellite. This included more specific determination on physical characteristics and resolving features to on its surface. Pioneer 10's closest approach was 446,250 km. ""Voyager 1"" and ""Voyager 2"" were next, passing by Ganymede in 1979. They refined its size, revealing it was larger than Saturn's"
"less than half that of Triton (the seventh-largest moon in the Solar System) alone. The largest of the satellites, Titania, has a radius of 788.9 km, or less than half that of the Moon, but slightly more than that of Rhea, the second-largest moon of Saturn, making Titania the eighth-largest moon in the Solar System. Uranus is about 10,000 times more massive than its moons. As of 2016, Uranus is known to have 13 inner moons. Their orbits lie inside that of Miranda. All inner moons are intimately connected to the rings of Uranus, which probably resulted from the fragmentation"
"moons - Ganymede, Europa and Io. Numerical integration indicates that the coplanar, four-planet system is stable for at least another billion years. This planetary system comes close to a triple conjunction between the three outer planets once per orbit of the outermost planet. The outermost three of the known planets likely formed further away from the star, and migrated inward. Gliese 876d, discovered in 2005, is the innermost known planet. With an estimated minimum mass only 5.88 times that of the Earth, it is possible that it is a dense terrestrial planet. Gliese 876 c, discovered in 2001, is a"
"orbit Neptune at an average of 125 times the distance between Earth and the Moon. Neptune has the largest Hill sphere in the Solar System, owing primarily to its large distance from the Sun; this allows it to retain control of such distant moons. Nevertheless, Jupiter's S/2003 J 2 orbits at the greatest percentage of the primary's Hill radius of all the moons in the Solar System on average, and the Jovian moons in the Carme and Pasiphae groups orbit at a greater percentage of their primary's Hill radius than Psamathe and Neso. The mass distribution of the Neptunian moons"
"10199 Chariklo 10199 Chariklo ( or ; ; provisional designation ) is the largest confirmed centaur (minor planet of the outer Solar System). It orbits the Sun between Saturn and Uranus, grazing the orbit of Uranus. On 26 March 2014, astronomers announced the discovery of two rings (nicknamed Oiapoque and Chuí) around Chariklo by observing a stellar occultation, making it the first minor planet known to have rings. Chariklo was discovered by James V. Scotti of the Spacewatch program on February 15, 1997. Chariklo is named after the nymph Chariclo (""""), the wife of Chiron and the daughter of Apollo."
"satellites in the Solar System. The orbits of three of them (Io, Europa, and Ganymede) form a pattern known as a Laplace resonance; for every four orbits that Io makes around Jupiter, Europa makes exactly two orbits and Ganymede makes exactly one. This resonance causes the gravitational effects of the three large moons to distort their orbits into elliptical shapes, because each moon receives an extra tug from its neighbors at the same point in every orbit it makes. The tidal force from Jupiter, on the other hand, works to circularize their orbits. The eccentricity of their orbits causes regular"
"Neptune Neptune is the eighth and farthest known planet from the Sun in the Solar System. In the Solar System, it is the fourth-largest planet by diameter, the third-most-massive planet, and the densest giant planet. Neptune is 17 times the mass of Earth and is slightly more massive than its near-twin Uranus, which is 15 times the mass of Earth and slightly larger than Neptune. Neptune orbits the Sun once every 164.8 years at an average distance of . It is named after the Roman god of the sea and has the astronomical symbol ♆, a stylised version of the"