Jupiter - Friend or Foe
... distribution of 1012-1013 icy bodies, the great majority of which are smaller than 10 km in diameter, occupying a thick shell ranging from approximately 103-105 AU from the Sun (e.g. Horner & Evans, 2002). Objects perturbed inwards from this cloud become the long period comets (periods >~ 200 years, ...
... distribution of 1012-1013 icy bodies, the great majority of which are smaller than 10 km in diameter, occupying a thick shell ranging from approximately 103-105 AU from the Sun (e.g. Horner & Evans, 2002). Objects perturbed inwards from this cloud become the long period comets (periods >~ 200 years, ...
Jupiter – friend or foe? III: the Oort cloud comets
... In order to create a swarm of test objects which might evolve onto Earth-impacting orbits, we randomly generated a population of 100,000 massless test particles, with perihelia located in the range 0.1 - 10 AU and aphelia between 104 and 105 AU. The population was structured in an attempt to emulate ...
... In order to create a swarm of test objects which might evolve onto Earth-impacting orbits, we randomly generated a population of 100,000 massless test particles, with perihelia located in the range 0.1 - 10 AU and aphelia between 104 and 105 AU. The population was structured in an attempt to emulate ...
Why are dense planetary rings only found between 8 and 20 AU?
... whether Saturn’s smallest moons are noticeably weaker than similar-sized objects orbiting Jupiter, Neptune or Kuiper Belt objects. However, there are some data which indirectly suggest that icy materials could be rather weak in the relevant parts of the outer Solar System. The observed activity of c ...
... whether Saturn’s smallest moons are noticeably weaker than similar-sized objects orbiting Jupiter, Neptune or Kuiper Belt objects. However, there are some data which indirectly suggest that icy materials could be rather weak in the relevant parts of the outer Solar System. The observed activity of c ...
Astronomy for Kids - Jupiter
... Jupiter is also the first of the gas planets in our system. A gas planet is one that does not have a solid surface like Earth. Instead, you can think of Jupiter, as well as the rest of the gas planets, as being a giant ball of mostly hydrogen and helium. Scientists believe that Jupiter has a small r ...
... Jupiter is also the first of the gas planets in our system. A gas planet is one that does not have a solid surface like Earth. Instead, you can think of Jupiter, as well as the rest of the gas planets, as being a giant ball of mostly hydrogen and helium. Scientists believe that Jupiter has a small r ...
Scientific Justification
... wave propagating from Io to Jupiter. A hybrid model by Crary and Bagenal [1997] suggested that the interaction begins as an Alfvén disturbance near Io, evolving into a steady current loop downstream. Multiple Io footprints, presumably resulting from Alfvén wave reflections, have been observed in STI ...
... wave propagating from Io to Jupiter. A hybrid model by Crary and Bagenal [1997] suggested that the interaction begins as an Alfvén disturbance near Io, evolving into a steady current loop downstream. Multiple Io footprints, presumably resulting from Alfvén wave reflections, have been observed in STI ...
Saturn - Rings
... ears or two moons. • A few years later he was confused when Saturn’s rings disappeared (seen edge on), because it’s angle had changed. •Saturn’s rings were discovered by Dutch astronomer Christian Huygens in 1659. ...
... ears or two moons. • A few years later he was confused when Saturn’s rings disappeared (seen edge on), because it’s angle had changed. •Saturn’s rings were discovered by Dutch astronomer Christian Huygens in 1659. ...
Jupiter Jupiter is the largest planet in the solar system. Its diameter is
... Jupiter is heavier than any other planet. Its mass (quantity of matter) is 318 times larger than that of Earth. Although Jupiter has a large mass, it has a relatively low density. Its density averages 1.33 grams per cubic centimeter, slightly more than the density of water. The density of Jupiter is ...
... Jupiter is heavier than any other planet. Its mass (quantity of matter) is 318 times larger than that of Earth. Although Jupiter has a large mass, it has a relatively low density. Its density averages 1.33 grams per cubic centimeter, slightly more than the density of water. The density of Jupiter is ...
ori pro 02 semifin [sfn] - SwRI Boulder
... and Saturn are inhibited in accreting gas by Jupiter and Saturn but remain dynamically stable for ~700 Myr; (c) the system goes unstable, ejecting the cores to become Uranus and Neptune; and (d) evolution to their current locations disupts trans-Saturnian icy planetesimals, scattering them throughou ...
... and Saturn are inhibited in accreting gas by Jupiter and Saturn but remain dynamically stable for ~700 Myr; (c) the system goes unstable, ejecting the cores to become Uranus and Neptune; and (d) evolution to their current locations disupts trans-Saturnian icy planetesimals, scattering them throughou ...
The Long-Term Dynamical Evolution of Planetary Systems
... The populations of small bodies of the solar system also attest to significant changes in the aftermath of gas removal, and possibly several 100 Myr later. The existence and properties of these populations thus provide important constraints on our dynamical history (e.g., see Section 6). There are t ...
... The populations of small bodies of the solar system also attest to significant changes in the aftermath of gas removal, and possibly several 100 Myr later. The existence and properties of these populations thus provide important constraints on our dynamical history (e.g., see Section 6). There are t ...
Study of Planetary Systems and Solar System Objects with JWST
... near-infrared sensitivity will be well-suited to studies of water, as well as other ices such as CH4 and CH3OH. The greater sensitivity to ices will elucidate correlations between the presence of volatiles and any other dynamical or physical properties. As knowledge of the compositional types improv ...
... near-infrared sensitivity will be well-suited to studies of water, as well as other ices such as CH4 and CH3OH. The greater sensitivity to ices will elucidate correlations between the presence of volatiles and any other dynamical or physical properties. As knowledge of the compositional types improv ...
Today in Astronomy 111: the Kuiper Belt and the Oort Cloud
... Centaurs (×, 10%) lie between the orbits of Saturn and Neptune. They have probably been perturbed out of the other three groups. Many have orbits that cross those of the giant planets, so none will be in its present situation very long, probably not more than 10 Myr each. Chiron and Pholus are bot ...
... Centaurs (×, 10%) lie between the orbits of Saturn and Neptune. They have probably been perturbed out of the other three groups. Many have orbits that cross those of the giant planets, so none will be in its present situation very long, probably not more than 10 Myr each. Chiron and Pholus are bot ...
ganycal
... during the Late Heavy Bomand Venus, Ganymede Reprinted by permission from Macmillan Publishers Ltd: Nature Geoscience 3, 3b 1st March 2010 March 2010. Cover bardment, the phase in lunar and Callisto are twins, history dominated by large and understanding impact events. mede is closer to Jupiter and ...
... during the Late Heavy Bomand Venus, Ganymede Reprinted by permission from Macmillan Publishers Ltd: Nature Geoscience 3, 3b 1st March 2010 March 2010. Cover bardment, the phase in lunar and Callisto are twins, history dominated by large and understanding impact events. mede is closer to Jupiter and ...
Program 8: Saturn
... currents - causing strongly zonal weather systems. At Saturn's equator, the cloud top winds reach 500 meters per second (1,800 kilometers per hour), which makes them, at this level, approximately two-thirds the speed of sound! Saturn, like Jupiter, has an internal heat source. Both planets radiating ...
... currents - causing strongly zonal weather systems. At Saturn's equator, the cloud top winds reach 500 meters per second (1,800 kilometers per hour), which makes them, at this level, approximately two-thirds the speed of sound! Saturn, like Jupiter, has an internal heat source. Both planets radiating ...
the instability of venus trojans
... from ground-based observations because of their small solar elongations, and the few surveys have not yet found any. Numerical studies of the long-term stability of putative Venus Trojans (Mikkola & Innanen 1992; Tabachnik & Evans 2000) are limited in time and cover a period of up to 100 Myr. This t ...
... from ground-based observations because of their small solar elongations, and the few surveys have not yet found any. Numerical studies of the long-term stability of putative Venus Trojans (Mikkola & Innanen 1992; Tabachnik & Evans 2000) are limited in time and cover a period of up to 100 Myr. This t ...
Determination of meteor showers on other planets using comet
... As they traverse their orbits about the Sun, comets slowly evaporate and fragment, leaving small bits of cometary debris along their orbital tracks. Some comet orbits intersect the Earth’s path, and the planet sweeps up a portion of these particulates each year. Generally, these particles are drawn ...
... As they traverse their orbits about the Sun, comets slowly evaporate and fragment, leaving small bits of cometary debris along their orbital tracks. Some comet orbits intersect the Earth’s path, and the planet sweeps up a portion of these particulates each year. Generally, these particles are drawn ...
Comets, Asteroids, and Meteors
... Greek mythology, in recognition of their dual comet/asteroid nature. • It is believed that the Centaurs may be objects which have escaped from the Kuiper belt. ...
... Greek mythology, in recognition of their dual comet/asteroid nature. • It is believed that the Centaurs may be objects which have escaped from the Kuiper belt. ...
Jupiter Fact Sheet - UNT College of Arts and Sciences
... • Most are rather small, but the four largest (discovered by Galileo in 1609) are as large or larger than the Earth's Moon. • The largest (Ganymede) is larger than the planets Mercury and Pluto. • The comparative features of the Galilean Moons mimic to some extent the properties of the planets in th ...
... • Most are rather small, but the four largest (discovered by Galileo in 1609) are as large or larger than the Earth's Moon. • The largest (Ganymede) is larger than the planets Mercury and Pluto. • The comparative features of the Galilean Moons mimic to some extent the properties of the planets in th ...
Jovian Planets
... equator to a pole moves closer to the axis and travels ahead of Earth's rotation. ...
... equator to a pole moves closer to the axis and travels ahead of Earth's rotation. ...
Lecture13.v3 - Lick Observatory
... gravity strongly perturbed the orbits of almost all the asteroids • Most of them got nudged into highly eccentric orbits, from which they either leave the Solar System or head inwards toward the Sun • A fraction of the asteroids headed inwards may have hit the early Earth! Page 26 ...
... gravity strongly perturbed the orbits of almost all the asteroids • Most of them got nudged into highly eccentric orbits, from which they either leave the Solar System or head inwards toward the Sun • A fraction of the asteroids headed inwards may have hit the early Earth! Page 26 ...
A Thick Cloud of Neptune Trojans and Their Colors
... information, we find that there is less than a (0.3)4 È 1% chance of observing the Neptune Trojan colors we found if they are drawn from the same color distribution as the KBOs. We further performed a Monte Carlo KolmogorovSmirnov (K-S) test on the colors (Table 2). We first determined the maximum c ...
... information, we find that there is less than a (0.3)4 È 1% chance of observing the Neptune Trojan colors we found if they are drawn from the same color distribution as the KBOs. We further performed a Monte Carlo KolmogorovSmirnov (K-S) test on the colors (Table 2). We first determined the maximum c ...
The populations of comet-like bodies in the Solar system
... through Centaurs to Jupiter-family comets, and so on. Similarly, it is possible for objects to be scattered out of the main asteroid belt and evolve into similar areas. So, it is possible that some Centaurs may be rocky or asteroidal while others may be icy or cometary. This is analogous to the exam ...
... through Centaurs to Jupiter-family comets, and so on. Similarly, it is possible for objects to be scattered out of the main asteroid belt and evolve into similar areas. So, it is possible that some Centaurs may be rocky or asteroidal while others may be icy or cometary. This is analogous to the exam ...
The Milky Way - Department of Physics
... formed together with Saturn because material would have been blown away by particle stream from hot Saturn at time of formation. ...
... formed together with Saturn because material would have been blown away by particle stream from hot Saturn at time of formation. ...