Resonance locking as the source of rapid tidal migration in the
... 2015) have provided the first (albeit uncertain) measurements of the outward migration rates of a few moons in the Jupiter and Saturn systems. These measurements indicate that current outward migration rates are much faster than predicted. In fact, for a constant tidal Q, the current migration rates ...
... 2015) have provided the first (albeit uncertain) measurements of the outward migration rates of a few moons in the Jupiter and Saturn systems. These measurements indicate that current outward migration rates are much faster than predicted. In fact, for a constant tidal Q, the current migration rates ...
The accretion of Uranus and Neptune by collisions among planetary
... outward migration speed of Jupiter/Saturn, or a combination of the two. Two caveats related to our work need to be stated up-front. First, our study assumes that Jupiter and Saturn are fully formed, while the accretion of these planets is by itself an unsolved problem that we do not address here. Th ...
... outward migration speed of Jupiter/Saturn, or a combination of the two. Two caveats related to our work need to be stated up-front. First, our study assumes that Jupiter and Saturn are fully formed, while the accretion of these planets is by itself an unsolved problem that we do not address here. Th ...
The Origin of Planetary Ring Systems
... the erasure of the initial conditions mentioned in the previous calculation : whatever the initial mass, the final state has a mass of few ×1022 g after 4 Gyr. Today, estimates of the ring mass based on surface densities derived from density waves (mostly in the A ring) give a mass of ' 4 × 1022 g, ...
... the erasure of the initial conditions mentioned in the previous calculation : whatever the initial mass, the final state has a mass of few ×1022 g after 4 Gyr. Today, estimates of the ring mass based on surface densities derived from density waves (mostly in the A ring) give a mass of ' 4 × 1022 g, ...
Planetary Rings - University of Maryland Astronomy
... first artificial satellite of Jupiter in December 1995 and remained in orbit until September 2003 when, fuel running out and instruments ailing, it was directed to crash into the giant planet. Images of the Jovian ring system are few but have improved resolution and image quality significantly over ...
... first artificial satellite of Jupiter in December 1995 and remained in orbit until September 2003 when, fuel running out and instruments ailing, it was directed to crash into the giant planet. Images of the Jovian ring system are few but have improved resolution and image quality significantly over ...
The dynamics of Jupiter and Saturn in the gaseous protoplanetary disk
... in their mutual 2:3 resonance, their outward migration is rather fast. Jupiter increases its orbital radius by ∼40% in 1000 orbits. If this really occurred in the Solar System, Jupiter would have been at some time in the middle of the asteroid belt. The properties of the asteroid belt (in particular ...
... in their mutual 2:3 resonance, their outward migration is rather fast. Jupiter increases its orbital radius by ∼40% in 1000 orbits. If this really occurred in the Solar System, Jupiter would have been at some time in the middle of the asteroid belt. The properties of the asteroid belt (in particular ...
Uranus
... The irregular moons, which orbit at a considerably farther distance than the inner and larger moons, have highly eccentric and retrograde orbits. These moons are thought to be captured asteroids. The first two moons to be discovered, Titania and Oberon, were spotted by Sir William Herschel on Januar ...
... The irregular moons, which orbit at a considerably farther distance than the inner and larger moons, have highly eccentric and retrograde orbits. These moons are thought to be captured asteroids. The first two moons to be discovered, Titania and Oberon, were spotted by Sir William Herschel on Januar ...
Early Dynamical Evolution of the Solar System: Pinning Down the
... mechanism was at play in the early solar system which prevented vigorous orbital decay. One such mechanism, which is both efficient and reasonable, is resonant capture (Masset & Snellgrove 2001). When a newly formed gaseous planet reaches a critical mass of ∼ 1MJ , it opens a gap in the proto-planea ...
... mechanism was at play in the early solar system which prevented vigorous orbital decay. One such mechanism, which is both efficient and reasonable, is resonant capture (Masset & Snellgrove 2001). When a newly formed gaseous planet reaches a critical mass of ∼ 1MJ , it opens a gap in the proto-planea ...
Minor Jovian Satellites & Rings
... Neptune’s satellites The previous Activity showed that Triton (2700 km) orbits 355,000 km from Neptune in a circular but retrograde orbit inclined at 23° to Neptune’s equator. Before Voyager 2’s visit, the only other known satellite was Nereid (diameter ~340 km), at a mean distance of 5.5 million k ...
... Neptune’s satellites The previous Activity showed that Triton (2700 km) orbits 355,000 km from Neptune in a circular but retrograde orbit inclined at 23° to Neptune’s equator. Before Voyager 2’s visit, the only other known satellite was Nereid (diameter ~340 km), at a mean distance of 5.5 million k ...
Uranus
... classical planets, it was never recognized as a planet by ancient observers because of its dimness and slow orbit. ...
... classical planets, it was never recognized as a planet by ancient observers because of its dimness and slow orbit. ...
Chapter 8 Moons, Rings, and Plutoids
... 8.5 Beyond Neptune • The first Kuiper belt objects were observed in the 1990s, and more than 1200 are now known. Some of them are comparable in size to Pluto. • These images show Eris and its moon Dysnomia. ...
... 8.5 Beyond Neptune • The first Kuiper belt objects were observed in the 1990s, and more than 1200 are now known. Some of them are comparable in size to Pluto. • These images show Eris and its moon Dysnomia. ...
Did Saturn`s Rings Form During The Late Heavy Bombardment?
... of Uranus and Neptune, however. The ice giants’ orbits become chaotic and start to approach each other. Thus, a short phase of encounters follows the resonance-crossing event. Consequently, both ice giants are scattered outward, onto large eccentricity orbits (e~0.3--0.4) that penetrate deeply into ...
... of Uranus and Neptune, however. The ice giants’ orbits become chaotic and start to approach each other. Thus, a short phase of encounters follows the resonance-crossing event. Consequently, both ice giants are scattered outward, onto large eccentricity orbits (e~0.3--0.4) that penetrate deeply into ...
Voyager 2
... White areas denote highaltitude clouds; the very highest clouds (near the top of the image) are shown in yellow-red. The green belt near the south pole is a region where the atmosphere absorbs blue light, perhaps indicating a different chemical composition there. ...
... White areas denote highaltitude clouds; the very highest clouds (near the top of the image) are shown in yellow-red. The green belt near the south pole is a region where the atmosphere absorbs blue light, perhaps indicating a different chemical composition there. ...
Cosmic Journey - Peoria Riverfront Museum
... lies in its ability to magnify objects. Telescopes actually work by collecting more light than the human eye can capture on its own. The larger a telescope’s mirror, the more light it can collect, and the better its vision. Hubble’s primary mirror is 94.5 inches (2.4 m) in diameter. This mirror is s ...
... lies in its ability to magnify objects. Telescopes actually work by collecting more light than the human eye can capture on its own. The larger a telescope’s mirror, the more light it can collect, and the better its vision. Hubble’s primary mirror is 94.5 inches (2.4 m) in diameter. This mirror is s ...
Rings, Moons, and Pluto The Jupiter System The Orbits of Jupiter`s
... rather than having a good prediction of where to look as was the case for Neptune Percival Lowell spent the last 10 years of his life (he died in 1916) searching unsuccessfully for the ninth planet In 1930, Clyde Tombaugh found the ninth planet after an exhaustive search using photographic plates an ...
... rather than having a good prediction of where to look as was the case for Neptune Percival Lowell spent the last 10 years of his life (he died in 1916) searching unsuccessfully for the ninth planet In 1930, Clyde Tombaugh found the ninth planet after an exhaustive search using photographic plates an ...
The Milky Way - Department of Physics
... surface (> > 100 for the jovian planets); rotation is the sidereal rotation period, h = hours and d = days; magnetic field (mag. field) is the total strength (NSSDC gives strength in #gauss × Rplanet3, where Rplanet is the radius of the planet and Earth's strength = 0.3076 gauss × RE3 = 7.981×1010 g ...
... surface (> > 100 for the jovian planets); rotation is the sidereal rotation period, h = hours and d = days; magnetic field (mag. field) is the total strength (NSSDC gives strength in #gauss × Rplanet3, where Rplanet is the radius of the planet and Earth's strength = 0.3076 gauss × RE3 = 7.981×1010 g ...
Lecture13
... • Pluto resembles the moons rather than the planets • The presence of Charon is puzzling • Some astronomers speculate that the strange orbits of Pluto, Charon, Nereid, and Triton are the result of violent collisions during the early history of the outer solar system ...
... • Pluto resembles the moons rather than the planets • The presence of Charon is puzzling • Some astronomers speculate that the strange orbits of Pluto, Charon, Nereid, and Triton are the result of violent collisions during the early history of the outer solar system ...
Planetary Rings - Astronomy Cast
... Fraser: Right, and then with bigger and better telescopes, it had a better view of the rings. So, what are the rings? We’ll start with Saturn, but all the gas giants have rings. Pamela: Yeah, that’s one of the really cool things. We now have these four worlds with four very, very different ring sys ...
... Fraser: Right, and then with bigger and better telescopes, it had a better view of the rings. So, what are the rings? We’ll start with Saturn, but all the gas giants have rings. Pamela: Yeah, that’s one of the really cool things. We now have these four worlds with four very, very different ring sys ...
Family Space Day Overview - Lunar and Planetary Institute
... Uranus Uranus, third largest planet in our solar system, was the first planet discovered by telescope. Uranus is thought to contain mostly rock and various types of ice that are distributed uniformly throughout the planet, with only about 15% hydrogen and a little helium. Like the other gas giants, ...
... Uranus Uranus, third largest planet in our solar system, was the first planet discovered by telescope. Uranus is thought to contain mostly rock and various types of ice that are distributed uniformly throughout the planet, with only about 15% hydrogen and a little helium. Like the other gas giants, ...
2 choices
... 10. There are ____ (a number) moons orbiting Saturn at distances closer to the planet than the G ring. 11. There are ____ (a number) moons orbiting Saturn at distances farther from the planet than the G ring. (HINT: Don’t forget to count the moons that are farther away than Titan. All of Saturn’s mo ...
... 10. There are ____ (a number) moons orbiting Saturn at distances closer to the planet than the G ring. 11. There are ____ (a number) moons orbiting Saturn at distances farther from the planet than the G ring. (HINT: Don’t forget to count the moons that are farther away than Titan. All of Saturn’s mo ...
A105 Stars and Galaxies
... The deep interior heat source drives convective currents which then lead, via the Coriolis effect, to the visible atmospheric belts ...
... The deep interior heat source drives convective currents which then lead, via the Coriolis effect, to the visible atmospheric belts ...
Answer Choices
... Like the rest of the outer planets, Saturn has many moons. Fifty-three of these moons are confirmed and nine others are yet to be confirmed. So it actually has more CONFIRMED moons than Jupiter. ...
... Like the rest of the outer planets, Saturn has many moons. Fifty-three of these moons are confirmed and nine others are yet to be confirmed. So it actually has more CONFIRMED moons than Jupiter. ...
Moons in our Solar System
... little more than half of Pluto’s; no other moon in our solar system is so close in size to its planet Charon appears to be covered by water ice, differing from Pluto’s surface of frozen nitrogen, methane & carbon dioxide Hubble Space Telescope image of Pluto (left) & Charon ...
... little more than half of Pluto’s; no other moon in our solar system is so close in size to its planet Charon appears to be covered by water ice, differing from Pluto’s surface of frozen nitrogen, methane & carbon dioxide Hubble Space Telescope image of Pluto (left) & Charon ...
Scientific Justification
... understanding of the auroral phenomenona on both planets, and the auroral emissions provide the only remote method to study the magnetospheres of these giant planets. Much has been learned about the auroral morphology on both planets, as described in more detail below. Much remains to be understood ...
... understanding of the auroral phenomenona on both planets, and the auroral emissions provide the only remote method to study the magnetospheres of these giant planets. Much has been learned about the auroral morphology on both planets, as described in more detail below. Much remains to be understood ...
Saturn
Saturn is the sixth planet from the Sun and the second-largest in the Solar System, after Jupiter. It is a gas giant with an average radius about nine times that of Earth. Although only one-eighth the average density of Earth, with its larger volume Saturn is just over 95 times more massive. Saturn is named after the Roman god of agriculture, its astronomical symbol (♄) represents the god's sickle.Saturn's interior is probably composed of a core of iron–nickel and rock (silicon and oxygen compounds). This core is surrounded by a deep layer of metallic hydrogen, an intermediate layer of liquid hydrogen and liquid helium, and finally outside the Frenkel line a gaseous outer layer. Saturn has a pale yellow hue due to ammonia crystals in its upper atmosphere. Electrical current within the metallic hydrogen layer is thought to give rise to Saturn's planetary magnetic field, which is weaker than Earth's, but has a magnetic moment 580 times that of Earth due to Saturn's larger size. Saturn's magnetic field strength is around one-twentieth the strength of Jupiter's. The outer atmosphere is generally bland and lacking in contrast, although long-lived features can appear. Wind speeds on Saturn can reach 1,800 km/h (500 m/s), higher than on Jupiter, but not as high as those on Neptune.Saturn has a prominent ring system that consists of nine continuous main rings and three discontinuous arcs and that is composed mostly of ice particles with a smaller amount of rocky debris and dust. Sixty-two moons are known to orbit Saturn, of which fifty-three are officially named. This does not include the hundreds of moonlets comprising the rings. Titan, Saturn's largest moon, and the second-largest in the Solar System, is larger than the planet Mercury, although less massive, and is the only moon in the Solar System to have a substantial atmosphere.