Overlapping of secular resonances in a Venus horseshoe orbit
... T being the orbital period of the planet (in years) and m being the planetary mass in solar mass units. The orbital period of Venus being ≈ 0.615 years, the lifetime of the horseshoe orbit can be as great as 1.38 × 109 years. This suggests that the orbit of Nereus can in principle remain stable on a ...
... T being the orbital period of the planet (in years) and m being the planetary mass in solar mass units. The orbital period of Venus being ≈ 0.615 years, the lifetime of the horseshoe orbit can be as great as 1.38 × 109 years. This suggests that the orbit of Nereus can in principle remain stable on a ...
Pluto, Charon & the Plutons
... These large icy bodies in the outer Solar System are part of a disk - not unlike the asteroid belt - that extends past the orbit of Neptune out to perhaps 500 AU called the Kuiper Belt. Since the the first sighting in 1992, searches have intensified and by 1999 there were 200 Kuiper Belt Objects or ...
... These large icy bodies in the outer Solar System are part of a disk - not unlike the asteroid belt - that extends past the orbit of Neptune out to perhaps 500 AU called the Kuiper Belt. Since the the first sighting in 1992, searches have intensified and by 1999 there were 200 Kuiper Belt Objects or ...
The model of the formation of solar system formation in The Urantia
... The orbital plane of the planets is not exactly in the plane of rotation of the sun; the orbit of the Earth is off by 7.25 degrees. A rotating nebula should have been fully symmetric around the central plane, unless something huge collided with the sun or uniformly pushed the planets into inclined o ...
... The orbital plane of the planets is not exactly in the plane of rotation of the sun; the orbit of the Earth is off by 7.25 degrees. A rotating nebula should have been fully symmetric around the central plane, unless something huge collided with the sun or uniformly pushed the planets into inclined o ...
On the evolution of the snow line in protoplanetary discs
... solid mass at the later times and formation of water-devoid planetesimals is impossible. It is improbable for the planetesimals to form before the snow line moves inwards because the time-scale involved is very short. Machida & Abe (2010) investigated the possibility that the Earth formed from subli ...
... solid mass at the later times and formation of water-devoid planetesimals is impossible. It is improbable for the planetesimals to form before the snow line moves inwards because the time-scale involved is very short. Machida & Abe (2010) investigated the possibility that the Earth formed from subli ...
Making the Terrestrial Planets: N-Body Integrations of Planetary
... to 56 initially isolated, nearly coplanar planetary embryos, plus Jupiter and Saturn. Gravitational perturbations between embryos increase their eccentricities, e, until their orbits become crossing, allowing collisions to occur. Further interactions produce large-amplitude oscillations in e and the ...
... to 56 initially isolated, nearly coplanar planetary embryos, plus Jupiter and Saturn. Gravitational perturbations between embryos increase their eccentricities, e, until their orbits become crossing, allowing collisions to occur. Further interactions produce large-amplitude oscillations in e and the ...
Report from the Oort Cloud
... Icy planetesimals formed in the region of the giant planets Some formed the cores of Jupiter, Saturn, Uranus, and Neptune Some stayed small and were scattered into big orbits Most were ejected from the Solar System, but the orbits of some were lifted from the planetary region by galactic tides and p ...
... Icy planetesimals formed in the region of the giant planets Some formed the cores of Jupiter, Saturn, Uranus, and Neptune Some stayed small and were scattered into big orbits Most were ejected from the Solar System, but the orbits of some were lifted from the planetary region by galactic tides and p ...
PowerPoint Presentation - Report from the Oort
... Icy planetesimals formed in the region of the giant planets Some formed the cores of Jupiter, Saturn, Uranus, and Neptune Some stayed small and were scattered into big orbits Most were ejected from the Solar System, but the orbits of some were lifted from the planetary region by galactic tides and p ...
... Icy planetesimals formed in the region of the giant planets Some formed the cores of Jupiter, Saturn, Uranus, and Neptune Some stayed small and were scattered into big orbits Most were ejected from the Solar System, but the orbits of some were lifted from the planetary region by galactic tides and p ...
Instructors` Guide
... Discussion Activity and Questions: Begin by building a comet. As your first step, break apart the dry ice with the mallet as needed to create many small pieces. Explain to the students that comets are largely made of frozen carbon dioxide (dry ice) and water. Mix these substances, and point out both ...
... Discussion Activity and Questions: Begin by building a comet. As your first step, break apart the dry ice with the mallet as needed to create many small pieces. Explain to the students that comets are largely made of frozen carbon dioxide (dry ice) and water. Mix these substances, and point out both ...
THE CONTRIBUTIONS OF COMETS TO
... satellites; others crashed into the forming planets, and still others could have been scattered into the Oort cloud. Finally, several objects in the outer region of the main asteroid belt have recently been discovered to exhibit cometary characteristics (Hsieh and Jewitt 2006). These different locat ...
... satellites; others crashed into the forming planets, and still others could have been scattered into the Oort cloud. Finally, several objects in the outer region of the main asteroid belt have recently been discovered to exhibit cometary characteristics (Hsieh and Jewitt 2006). These different locat ...
Jupiter and Saturn Guiding Questions Long orbital periods of Jupiter
... Triton is a frigid, icy world with a young surface and a tenuous atmosphere • Neptune has 13 satellites, one of which (Triton) is comparable in size to our Moon or the Galilean satellites of Jupiter • Triton has a young, icy surface indicative of tectonic activity • The energy for this activity may ...
... Triton is a frigid, icy world with a young surface and a tenuous atmosphere • Neptune has 13 satellites, one of which (Triton) is comparable in size to our Moon or the Galilean satellites of Jupiter • Triton has a young, icy surface indicative of tectonic activity • The energy for this activity may ...
the ringed giants – jupiter and saturn
... atmosphere that is more dense even than Earth’s. This probe is known as Huygens and was built by the European Space Agency. The Huygens probe has been designed to function even if it lands in liquid methane, which may exist on Titan’s surface. Cassini was launched in 1997. Cassini made two flybys of ...
... atmosphere that is more dense even than Earth’s. This probe is known as Huygens and was built by the European Space Agency. The Huygens probe has been designed to function even if it lands in liquid methane, which may exist on Titan’s surface. Cassini was launched in 1997. Cassini made two flybys of ...
A coupling of the origin of asteroid belt, planetary ring
... scenarios and developed a model to propose that planetary tidal forces strip ice material from a Titan-sized satellite to form a pure ice ring and icy moons are subsequently spawned from the ring [7]. If Saturn’s rings are evolved from a pure ice ring, it is necessary for them to keep identical mate ...
... scenarios and developed a model to propose that planetary tidal forces strip ice material from a Titan-sized satellite to form a pure ice ring and icy moons are subsequently spawned from the ring [7]. If Saturn’s rings are evolved from a pure ice ring, it is necessary for them to keep identical mate ...
Neptune`s Unusual Rings The structure of Neptune`s rings was not
... farther out than the 10,000-km Triton flyby recommended in September of 1985, the new aiming point was, ironically, close to the Triton flyby distance selected several years earlier in August of 1980. The 40,000-km Triton flyby was not only an exciting trajectory from a scientific point of view, bu ...
... farther out than the 10,000-km Triton flyby recommended in September of 1985, the new aiming point was, ironically, close to the Triton flyby distance selected several years earlier in August of 1980. The 40,000-km Triton flyby was not only an exciting trajectory from a scientific point of view, bu ...
A coupling of the origin of asteroid belt, planetary ring
... 2010). The origin theory of asteroid belt believes that asteroids are fragments of a destroyed planet (Herschel 1807), the currently accepted scenario believes asteroids to be rocks that in primordial solar nebula never accumulate into a genuine planet (Petit et al.2001). The origin of comet include ...
... 2010). The origin theory of asteroid belt believes that asteroids are fragments of a destroyed planet (Herschel 1807), the currently accepted scenario believes asteroids to be rocks that in primordial solar nebula never accumulate into a genuine planet (Petit et al.2001). The origin of comet include ...
American Scientist - Earth, Environmental and Planetary Sciences
... Pluto is no misfit at all. It is simply the brightest member of a vast population of objects orbiting beyond the Jovians: an entire third zone of the solar system. This region, first hypothesized in the 1940s by Gerard Kuiper, is now called the Kuiper Belt. It is littered with a diverse array of com ...
... Pluto is no misfit at all. It is simply the brightest member of a vast population of objects orbiting beyond the Jovians: an entire third zone of the solar system. This region, first hypothesized in the 1940s by Gerard Kuiper, is now called the Kuiper Belt. It is littered with a diverse array of com ...
Document
... • 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 of a rigid body remains constant in time regardless of external forces exerted on i ...
... • 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 of a rigid body remains constant in time regardless of external forces exerted on i ...
File
... Our Solar System has eight known planets divided into two categories – the inner and the outer planets. The first group consists of the four ones that are closest to the Sun: Mercury, Venus, Earth, and Mars. They are also called terrestrial or rocky planets and are separated from the second group by ...
... Our Solar System has eight known planets divided into two categories – the inner and the outer planets. The first group consists of the four ones that are closest to the Sun: Mercury, Venus, Earth, and Mars. They are also called terrestrial or rocky planets and are separated from the second group by ...
Comets vs. Asteroids
... Although a comet nucleus is usually smaller than 25 miles across, the coma may be as big as 2,000,000 miles across! Asteroid Ceres is about the same size as Texas. Asteroid Vesta is about the same size as Arizona. Vesta and Ceres contain more than one-third of all the mass of the hundreds of ...
... Although a comet nucleus is usually smaller than 25 miles across, the coma may be as big as 2,000,000 miles across! Asteroid Ceres is about the same size as Texas. Asteroid Vesta is about the same size as Arizona. Vesta and Ceres contain more than one-third of all the mass of the hundreds of ...
File
... boiling points) condense everywhere in the solar system, but hydrogen and helium (with low boiling points) condense only in the cooler, outer parts of the solar system. (All the planets begin as rocky masses, but the cooler region toward the outer part of the Solar System allows a huge amount of hyd ...
... boiling points) condense everywhere in the solar system, but hydrogen and helium (with low boiling points) condense only in the cooler, outer parts of the solar system. (All the planets begin as rocky masses, but the cooler region toward the outer part of the Solar System allows a huge amount of hyd ...
Main-belt comets as tracers of ice in the inner Solar system
... perturbations from giant planet migration could have resulted in significant contamination of the asteroid belt by icy trans-Neptunian objects (TNOs), raising the possibility that the likewise icy MBCs could be from the outer solar system after all. Levison et al. expect that TNO interlopers would r ...
... perturbations from giant planet migration could have resulted in significant contamination of the asteroid belt by icy trans-Neptunian objects (TNOs), raising the possibility that the likewise icy MBCs could be from the outer solar system after all. Levison et al. expect that TNO interlopers would r ...
Lecture 10. Roche Limit / Comets
... in the outer Solar System) would generally be expected. Previous ring origin theories invoke the collisional disruption of a small moon3, 4, or the tidal disruption of a comet during a close passage by Saturn5. These models are improbable and/or struggle to account for basic properties of the rings, ...
... in the outer Solar System) would generally be expected. Previous ring origin theories invoke the collisional disruption of a small moon3, 4, or the tidal disruption of a comet during a close passage by Saturn5. These models are improbable and/or struggle to account for basic properties of the rings, ...
a survey for ``normal`` irregular satellites around neptune: limits to
... night and two times each on the second night for a total of five images per field, or 35 images for the survey. The second night’s fields were at the same angular distance from Neptune as those from the first night, but the background star fields were slightly different because of Neptune’s movement ...
... night and two times each on the second night for a total of five images per field, or 35 images for the survey. The second night’s fields were at the same angular distance from Neptune as those from the first night, but the background star fields were slightly different because of Neptune’s movement ...
Scattered disc
The scattered disc (or scattered disk) is a distant region of the Solar System that is sparsely populated by icy minor planets, a subset of the broader family of trans-Neptunian objects. The scattered-disc objects (SDOs) have orbital eccentricities ranging as high as 0.8, inclinations as high as 40°, and perihelia greater than 30 astronomical units (4.5×109 km; 2.8×109 mi). These extreme orbits are thought to be the result of gravitational ""scattering"" by the gas giants, and the objects continue to be subject to perturbation by the planet Neptune.Although the closest scattered-disc objects approach the Sun at about 30–35 AU, their orbits can extend well beyond 100 AU. This makes scattered objects among the most distant and coldest objects in the Solar System. The innermost portion of the scattered disc overlaps with a torus-shaped region of orbiting objects traditionally called the Kuiper belt, but its outer limits reach much farther away from the Sun and farther above and below the ecliptic than the Kuiper belt proper.Because of its unstable nature, astronomers now consider the scattered disc to be the place of origin for most periodic comets in the Solar System, with the centaurs, a population of icy bodies between Jupiter and Neptune, being the intermediate stage in an object's migration from the disc to the inner Solar System. Eventually, perturbations from the giant planets send such objects towards the Sun, transforming them into periodic comets. Many Oort cloud objects are also thought to have originated in the scattered disc. Detached objects are not sharply distinct from scattered disc objects, and some such as Sedna have sometimes been considered to be included in this group.