Resonance locking as the source of rapid tidal migration in the
... match those inferred for Jupiter and Saturn, given plausible internal structures of the planets. Models involving viscoelastic dissipation in the core or inertial waves in the envelope require the presence of a large core (solid in the former case, and either solid or more dense in the latter case) ...
... match those inferred for Jupiter and Saturn, given plausible internal structures of the planets. Models involving viscoelastic dissipation in the core or inertial waves in the envelope require the presence of a large core (solid in the former case, and either solid or more dense in the latter case) ...
Document
... • is in orbit (path of one object around a point or another point) around the Sun; • has sufficient mass for its self-gravity to overcome rigid body forces (is an idealization of a solid body of finite size in which deformation is neglected. In other words, the distance between any two given points ...
... • is in orbit (path of one object around a point or another point) around the Sun; • has sufficient mass for its self-gravity to overcome rigid body forces (is an idealization of a solid body of finite size in which deformation is neglected. In other words, the distance between any two given points ...
Planetary Rings - University of Maryland Astronomy
... surrounding the giant planets. The Galileo spacecraft, launched in 1989, became the 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 ri ...
... surrounding the giant planets. The Galileo spacecraft, launched in 1989, became the 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 ri ...
High-resolution simulations of the final assembly of Earth
... We choose three different sets of initial conditions for our high resolution simulations, shown in Figure 1 and summarized in Table 1. In all cases we follow an r−3/2 surface density profile with total mass in solid bodies between 8.5 and 10 M⊕ . All protoplanets are given small initial eccentriciti ...
... We choose three different sets of initial conditions for our high resolution simulations, shown in Figure 1 and summarized in Table 1. In all cases we follow an r−3/2 surface density profile with total mass in solid bodies between 8.5 and 10 M⊕ . All protoplanets are given small initial eccentriciti ...
class slides for Chapter 9
... are similar to those of Jupiter and Saturn Uranus and Neptune are cold enough that ammonia freezes; methane dominates and gives the characteristic blue color ...
... are similar to those of Jupiter and Saturn Uranus and Neptune are cold enough that ammonia freezes; methane dominates and gives the characteristic blue color ...
Regular and Chaotic Dynamics in the Mean
... the phenomenon referred to as “stable chaos.” It was previously noted that a large number of asteroids have strongly chaotic orbits yet are stable on long intervals of time (Milani and Nobili, 1992; Milani et al., 1997). The main reason for such behavior was revealed by the discovery of the so-calle ...
... the phenomenon referred to as “stable chaos.” It was previously noted that a large number of asteroids have strongly chaotic orbits yet are stable on long intervals of time (Milani and Nobili, 1992; Milani et al., 1997). The main reason for such behavior was revealed by the discovery of the so-calle ...
The Legacy of Galileo - Keck Institute for Space Studies
... Galileo’s discoveries between 1609 and 1610 reinforce the Copernican cosmology demonstrating that the descriptions of the universe given by Aristotelian philosophers were wrong, just as the anatomical dissections in medicine proved that the description given at that time of the human body was incorr ...
... Galileo’s discoveries between 1609 and 1610 reinforce the Copernican cosmology demonstrating that the descriptions of the universe given by Aristotelian philosophers were wrong, just as the anatomical dissections in medicine proved that the description given at that time of the human body was incorr ...
Solar System evolution from compositional mapping of the asteroid
... two centuries since their first discovery, asteroids have been viewed as remnants of planetary formation. Located between Mars and Jupiter in the main asteroid belt (Fig. 1), they were thought to have formed essentially where they now are2. Early measurements showed asteroids in the inner part of th ...
... two centuries since their first discovery, asteroids have been viewed as remnants of planetary formation. Located between Mars and Jupiter in the main asteroid belt (Fig. 1), they were thought to have formed essentially where they now are2. Early measurements showed asteroids in the inner part of th ...
Ch. 13
... Band structure of Neptune is more visible, and Neptune has internal heat source of unknown origin: ...
... Band structure of Neptune is more visible, and Neptune has internal heat source of unknown origin: ...
On the formation of Uranus and Neptune
... A test particle scattered by Jupiter. The top panel shows the evolution of its semimajor axis (thick solid), perihelion (solid) and aphelion (dotted) over time. The bottom panel shows the evolution of the Tisserand parameter . . . . . . . . . . . . . Evolution of the eccentricity of a 10&& body (thi ...
... A test particle scattered by Jupiter. The top panel shows the evolution of its semimajor axis (thick solid), perihelion (solid) and aphelion (dotted) over time. The bottom panel shows the evolution of the Tisserand parameter . . . . . . . . . . . . . Evolution of the eccentricity of a 10&& body (thi ...
Coming To A Planet Near You
... Demonstration #1: Planetary Rotation................................................................................ 41-43 ...
... Demonstration #1: Planetary Rotation................................................................................ 41-43 ...
Solar System evolution from compositional mapping of the
... (1459) Magnya, a basaltic fragment discovered among the cold, bluish bodies14. Then, a handful more of these rogue igneous asteroids were found dispersed across the main belt16,28,29. Iron asteroids present in the main belt should have formed much closer to the Sun15. Primitive asteroids were discov ...
... (1459) Magnya, a basaltic fragment discovered among the cold, bluish bodies14. Then, a handful more of these rogue igneous asteroids were found dispersed across the main belt16,28,29. Iron asteroids present in the main belt should have formed much closer to the Sun15. Primitive asteroids were discov ...
All About Neptune
... Proteus, the outermost of these moons, is also the second-largest moon in orbit around Neptune. Voyager 2 also discovered it, and we learned then that it is at least 400 metres (248.5 miles) in diameter. Proteus is also heavily cratered. Neptune’s ring system was first spotted in 1984 in Chile, by a ...
... Proteus, the outermost of these moons, is also the second-largest moon in orbit around Neptune. Voyager 2 also discovered it, and we learned then that it is at least 400 metres (248.5 miles) in diameter. Proteus is also heavily cratered. Neptune’s ring system was first spotted in 1984 in Chile, by a ...
Chaos in the Solar System
... two-body problems is an excellent starting approximation. Using their “Keplerian” orbits, one can calculate a first approximation to their forces on each other. Successive iterations of that procedure, carried out with great sophistication, are the techniques called celestial mechanics. The classic ...
... two-body problems is an excellent starting approximation. Using their “Keplerian” orbits, one can calculate a first approximation to their forces on each other. Successive iterations of that procedure, carried out with great sophistication, are the techniques called celestial mechanics. The classic ...
Launch - Pluto - JHUAPL - The Johns Hopkins University Applied
... • Surface composition includes nitrogen, carbon monoxide, methane and water ices. - Many other materials may also be present but undiscovered. • Has a tenuous but complex atmosphere made mostly of nitrogen, with traces of methane, carbon monoxide, and some heavier hydrocarbons. The upper atmosphere ...
... • Surface composition includes nitrogen, carbon monoxide, methane and water ices. - Many other materials may also be present but undiscovered. • Has a tenuous but complex atmosphere made mostly of nitrogen, with traces of methane, carbon monoxide, and some heavier hydrocarbons. The upper atmosphere ...
Chapter 14 Uranus, Neptune, Pluto and the Kuiper Belt
... similar to the moderate-‐sized moons of Saturn, plus at least 22 more small satellites. Neptune has 13 satellites, one of which (Triton) is comparable in size to our Moon or the Galilean satellites ...
... similar to the moderate-‐sized moons of Saturn, plus at least 22 more small satellites. Neptune has 13 satellites, one of which (Triton) is comparable in size to our Moon or the Galilean satellites ...
A Thick Cloud of Neptune Trojans and Their Colors
... the solar system after any marked planetary migration (4, 12). These simulations also demonstrate that Saturn and Uranus are not expected to have any substantial primordial Trojan populations. Recent numerical simulations of small bodies temporarily passing through the giant planet region, such as C ...
... the solar system after any marked planetary migration (4, 12). These simulations also demonstrate that Saturn and Uranus are not expected to have any substantial primordial Trojan populations. Recent numerical simulations of small bodies temporarily passing through the giant planet region, such as C ...
Outer irregular satellites of the planets and their relationship with
... the known irregular satellites. In these figures all known regular satellites would fall very near the origin. Almost all known planetary satellites fall into one of the three types mentioned above. A few exceptions do exist. The formation of the Earth’s Moon is best explained through a collision be ...
... the known irregular satellites. In these figures all known regular satellites would fall very near the origin. Almost all known planetary satellites fall into one of the three types mentioned above. A few exceptions do exist. The formation of the Earth’s Moon is best explained through a collision be ...
Outer irregular satellites of the planets and their
... nebula would have to occur within a few thousand years of capture in order for the satellites to not experience significant orbital evolution and eventually spiral into the planet from gas drag. In this scenario the current irregular satellites are only the last few captured bodies which did not have ...
... nebula would have to occur within a few thousand years of capture in order for the satellites to not experience significant orbital evolution and eventually spiral into the planet from gas drag. In this scenario the current irregular satellites are only the last few captured bodies which did not have ...
COMETS! - Santa Ana College
... hunters to believe that it would provide a spectacular view. It was anxiously awaited by the public and intensely covered by newspapers and television before the age of the internet. But Kohoutek didn’t live up to expectations and fizzled out in the media. However, two years later, another comet tha ...
... hunters to believe that it would provide a spectacular view. It was anxiously awaited by the public and intensely covered by newspapers and television before the age of the internet. But Kohoutek didn’t live up to expectations and fizzled out in the media. However, two years later, another comet tha ...
Effects of Planetary Migration on Natural Satellites of the Outer Planets
... we are representing the original planetesimal disk by a limited population of 1000 bodies. One may ask whether this approximation is adequate, and whether our results are expected to represent the effects of the original disk. The answer to this question depends on two aspects: (i) the mass distribu ...
... we are representing the original planetesimal disk by a limited population of 1000 bodies. One may ask whether this approximation is adequate, and whether our results are expected to represent the effects of the original disk. The answer to this question depends on two aspects: (i) the mass distribu ...
Satellite names worth remembering
... Neptune also has the usual horde of smaller satellites: Nereid, Galatea, Naiad, Proteus, and others. Half of them were discovered by the Voyager 2 spacecraft when it passed that planet in ...
... Neptune also has the usual horde of smaller satellites: Nereid, Galatea, Naiad, Proteus, and others. Half of them were discovered by the Voyager 2 spacecraft when it passed that planet in ...
Uranus and Neptune Uranus Saturn Neptune
... Trans-Neptunian Objects (TNO’s) are icy worlds that mostly lie in a band called the Kuiper belt that extends from 30 to 50 AU from the Sun. The Kuiper Belt and the Oort Cloud contain billions of small, icy, rocky objects in orbit around the Sun More than a thousand icy worlds have been discovered be ...
... Trans-Neptunian Objects (TNO’s) are icy worlds that mostly lie in a band called the Kuiper belt that extends from 30 to 50 AU from the Sun. The Kuiper Belt and the Oort Cloud contain billions of small, icy, rocky objects in orbit around the Sun More than a thousand icy worlds have been discovered be ...
Exploration of Jupiter
The exploration of Jupiter has been conducted via close observations by automated spacecraft. It began with the arrival of Pioneer 10 into the Jovian system in 1973, and, as of 2014, has continued with seven further spacecraft missions. All of these missions were undertaken by the National Aeronautics and Space Administration (NASA), and all but one have been flybys that take detailed observations without the probe landing or entering orbit. These probes make Jupiter the most visited of the Solar System's outer planets as all missions to the outer Solar System have used Jupiter flybys to reduce fuel requirements and travel time. Plans for more missions to the Jovian system are under development, none of which are scheduled to arrive at the planet before 2016. Sending a craft to Jupiter entails many technical difficulties, especially due to the probes' large fuel requirements and the effects of the planet's harsh radiation environment.The first spacecraft to visit Jupiter was Pioneer 10 in 1973, followed a year later by Pioneer 11. Aside from taking the first close-up pictures of the planet, the probes discovered its magnetosphere and its largely fluid interior. The Voyager 1 and Voyager 2 probes visited the planet in 1979, and studied its moons and the ring system, discovering the volcanic activity of Io and the presence of water ice on the surface of Europa. Ulysses further studied Jupiter's magnetosphere in 1992 and then again in 2000. The Cassini probe approached the planet in 2000 and took very detailed images of its atmosphere. The New Horizons spacecraft passed by Jupiter in 2007 and made improved measurements of its and its satellites' parameters.The Galileo spacecraft is the only one to have entered orbit around Jupiter, arriving in 1995 and studying the planet until 2003. During this period Galileo gathered a large amount of information about the Jovian system, making close approaches to all of the four large Galilean moons and finding evidence for thin atmospheres on three of them, as well as the possibility of liquid water beneath their surfaces. It also discovered a magnetic field around Ganymede. As it approached Jupiter, it also witnessed the impact of Comet Shoemaker–Levy 9. In December 1995, it sent an atmospheric probe into the Jovian atmosphere, so far the only craft to do so.Future probes planned by NASA include the Juno spacecraft, launched in 2011, which will enter a polar orbit around Jupiter to determine whether it has a rocky core. The European Space Agency selected the L1-class JUICE mission in 2012 as part of its Cosmic Vision programme to explore three of Jupiter's Galilean moons, with a possible Ganymede lander provided by Roscosmos. JUICE is proposed to be launched in 2022. Some NASA administrators have even speculated as to the possibility of human exploration of Jupiter, but such missions are not considered feasible with current technology; such as radiation protection.