Critique of Modern Oort Comet Theory
... and more recent scientists suggest the number of comets in the Oort cloud would be approximately 1011. Oort also considered that if an object reached distances of tens of thousands of A.U. from the sun, perturbations from the planets would be negligible and the perturbations of nearby stars would be ...
... and more recent scientists suggest the number of comets in the Oort cloud would be approximately 1011. Oort also considered that if an object reached distances of tens of thousands of A.U. from the sun, perturbations from the planets would be negligible and the perturbations of nearby stars would be ...
Satellite names worth remembering
... orbit.” This isn’t easy to explain, for such a large moon. ...
... orbit.” This isn’t easy to explain, for such a large moon. ...
PPT
... in the asteroid belt is less than the mass of our Moon • Asteroids are relics of planetesimals that failed to accrete into a full-sized planet – effect of Jupiter ...
... in the asteroid belt is less than the mass of our Moon • Asteroids are relics of planetesimals that failed to accrete into a full-sized planet – effect of Jupiter ...
On the irrelevance of being a PLUTO! Size Scale of Stars and Planets
... • Modelling Solar System requires understanding of Kuiper belt. • Kuiper belt is probably the last stable location of the solar system where the escape velocity (~ 7 km/s) is much higher than rotation velocity (~ 5 km/s). Beyond this, the Sun’s gravity is too weak. • The Kuiper belt has to be studie ...
... • Modelling Solar System requires understanding of Kuiper belt. • Kuiper belt is probably the last stable location of the solar system where the escape velocity (~ 7 km/s) is much higher than rotation velocity (~ 5 km/s). Beyond this, the Sun’s gravity is too weak. • The Kuiper belt has to be studie ...
Evolution of Comets Into Asteroids - SwRI Boulder
... reservoirs, such as the Oort cloud and the Kuiper belt. Physical studies of both comets and asteroids have given us a far better understanding of the nature of these bodies and have identified possible discriminators to be used in comparing them. As a result, we can now identify likely dormant or ex ...
... reservoirs, such as the Oort cloud and the Kuiper belt. Physical studies of both comets and asteroids have given us a far better understanding of the nature of these bodies and have identified possible discriminators to be used in comparing them. As a result, we can now identify likely dormant or ex ...
New Extreme Trans-Neptunian Objects: Towards a Super
... With the idea that there is an unseen massive planet in the few hundred AU range from Trujillo and Sheppard (2014), Bromley and Kenyon (2014) and Kenyon and Bromley (2015) showed how a massive planet might have obtained such a distant orbit after being scattered out of the giant planet region and in ...
... With the idea that there is an unseen massive planet in the few hundred AU range from Trujillo and Sheppard (2014), Bromley and Kenyon (2014) and Kenyon and Bromley (2015) showed how a massive planet might have obtained such a distant orbit after being scattered out of the giant planet region and in ...
The Origin of Planetary Ring Systems
... interactions generally result in a transfer of angular momentum from the inner to the outer ones. This is similar to a sheared viscous fluid: friction between faster and slower rings tends to slow the former down, and accelerate the latter. Even if rings are not fluid, and do not have a viscosity in ...
... interactions generally result in a transfer of angular momentum from the inner to the outer ones. This is similar to a sheared viscous fluid: friction between faster and slower rings tends to slow the former down, and accelerate the latter. Even if rings are not fluid, and do not have a viscosity in ...
Observing Uranus and its satellites (2006
... Unfortunately, it will take another 30 years before the Earth will pass the equatorial plane of Uranus again and we will be able to study mutual occultations and eclipses of its satellites. But there are other challenges on Uranus. Recently, amateurs have reported the detection of the ring system of ...
... Unfortunately, it will take another 30 years before the Earth will pass the equatorial plane of Uranus again and we will be able to study mutual occultations and eclipses of its satellites. But there are other challenges on Uranus. Recently, amateurs have reported the detection of the ring system of ...
Pebble Accretion and the Diversity of Planetary Systems
... The process of planet formation is still poorly understood despite recent observational and theoretical advances (Helled et al. 2014; Raymond et al. 2014; Winn & Fabrycky 2015). In particular, we do not understand precisely why planet formation in the Solar System gave rise to two distinctly differe ...
... The process of planet formation is still poorly understood despite recent observational and theoretical advances (Helled et al. 2014; Raymond et al. 2014; Winn & Fabrycky 2015). In particular, we do not understand precisely why planet formation in the Solar System gave rise to two distinctly differe ...
Triton`s Evolution with a Primordial Neptunian Satellite System
... time is small and thus neglected. Initially we do not include Kozai perturbations in these preliminary simulations, although they may be relevant. We use Movshovitz et al. [7] scaling laws to analyze impact outcomes. These disruption scaling laws were derived for non-hit-and-run impacts between two ...
... time is small and thus neglected. Initially we do not include Kozai perturbations in these preliminary simulations, although they may be relevant. We use Movshovitz et al. [7] scaling laws to analyze impact outcomes. These disruption scaling laws were derived for non-hit-and-run impacts between two ...
Black rain: The burial of the Galilean satellites in irregular satellite
... Irregular satellites are dormant comet-like bodies that reside on distant prograde and retrograde orbits around the giant planets. They are likely to be captured objects. Dynamical modeling work indicates they may have been caught during a violent reshuffling of the giant planets 4 Gy ago (Ga) as de ...
... Irregular satellites are dormant comet-like bodies that reside on distant prograde and retrograde orbits around the giant planets. They are likely to be captured objects. Dynamical modeling work indicates they may have been caught during a violent reshuffling of the giant planets 4 Gy ago (Ga) as de ...
Seeing Saturn Cart
... regenerated by an ongoing process. Enceladus, a moon of Saturn, has geysers of water that may be part of this regeneration process. All we see of Saturn is clouds. Is there a solid planet under the clouds? Saturn's deep interior is similar to Jupiter's consisting of a rocky core, a liquid metallic h ...
... regenerated by an ongoing process. Enceladus, a moon of Saturn, has geysers of water that may be part of this regeneration process. All we see of Saturn is clouds. Is there a solid planet under the clouds? Saturn's deep interior is similar to Jupiter's consisting of a rocky core, a liquid metallic h ...
Black Rain: The Burial of the Galilean Satellites in Irregular
... Irregular satellites are dormant comet-like bodies that reside on distant prograde and retrograde orbits around the giant planets. They were possibly captured during a violent reshuffling of the giant planets ∼ 4 Gy ago (Ga) as described by the so-called Nice model. As giant planet migration scatter ...
... Irregular satellites are dormant comet-like bodies that reside on distant prograde and retrograde orbits around the giant planets. They were possibly captured during a violent reshuffling of the giant planets ∼ 4 Gy ago (Ga) as described by the so-called Nice model. As giant planet migration scatter ...
Our Solar System
... could have melted it and allowed it to differentiate into a dense metallic core and a lower density crust. a. radioactive decay b. the sun c. volcanic eruptions d. tidal forces e. impacts of small meteorites The condensation sequence suggests that __________ should condense closest to the sun. a. Jo ...
... could have melted it and allowed it to differentiate into a dense metallic core and a lower density crust. a. radioactive decay b. the sun c. volcanic eruptions d. tidal forces e. impacts of small meteorites The condensation sequence suggests that __________ should condense closest to the sun. a. Jo ...
Saturn - Heroku
... about planet saturn - saturn is the sixth planet from the sun and the most distant that can be seen with the naked eye saturn is the second largest planet and is best known for its, saturn simple english wikipedia the free encyclopedia - saturn is the sixth planet from the sun in the solar system it ...
... about planet saturn - saturn is the sixth planet from the sun and the most distant that can be seen with the naked eye saturn is the second largest planet and is best known for its, saturn simple english wikipedia the free encyclopedia - saturn is the sixth planet from the sun in the solar system it ...
Constraints to Uranus` Great Collision IV
... some case retrograde, orbits. These objects cannot have formed by circumplanetary accretion as the regular satellites but they are likely products of an early capture of primordial objects from heliocentric orbits, probably in association with planet formation itself (Jewitt & Sheppard 2005). It is ...
... some case retrograde, orbits. These objects cannot have formed by circumplanetary accretion as the regular satellites but they are likely products of an early capture of primordial objects from heliocentric orbits, probably in association with planet formation itself (Jewitt & Sheppard 2005). It is ...
A Sedna-like body with a perihelion of 80
... Oort cloud, whose objects could outnumber all other dynamically stable populations in the Solar System. The inner Oort cloud objects probably formed on nearly circular orbits, allowing them to accumulate mass efficiently6–9, and were later perturbed into the eccentric orbits we see today. We define ...
... Oort cloud, whose objects could outnumber all other dynamically stable populations in the Solar System. The inner Oort cloud objects probably formed on nearly circular orbits, allowing them to accumulate mass efficiently6–9, and were later perturbed into the eccentric orbits we see today. We define ...
VARIABILiTY IN THE OUTER PLANET AURORAE
... Distribution of the UV Aurora! Ovals. The only direct mapping of the UV auroral ovals has been from Voyager UVS observations of the night atmosphere as Voyager 2 departed the system, during which the aperture was scanned north/south across Jupiter until auroral emission was detected near each pole / ...
... Distribution of the UV Aurora! Ovals. The only direct mapping of the UV auroral ovals has been from Voyager UVS observations of the night atmosphere as Voyager 2 departed the system, during which the aperture was scanned north/south across Jupiter until auroral emission was detected near each pole / ...
All About Neptune
... Neptune has two very different groups of moons – inner moons with regular, circular orbits, and outer moons with irregular, eccentric orbits Neptune has 13 known moons. Triton is by far the largest moon, comprising more than 99 per cent of the total mass in orbit around the planet. It has a diameter ...
... Neptune has two very different groups of moons – inner moons with regular, circular orbits, and outer moons with irregular, eccentric orbits Neptune has 13 known moons. Triton is by far the largest moon, comprising more than 99 per cent of the total mass in orbit around the planet. It has a diameter ...
Fossilized condensation lines in the Solar System protoplanetary disk
... line and we attempt to explain why no planetesimals formed inside this distance when the temperature dropped. A wrap-up will follow in Section 6 and an appendix on planet migration in Appendix A. 2. Previous models The condensation line problem is a subject only partially explored. For the snowline ...
... line and we attempt to explain why no planetesimals formed inside this distance when the temperature dropped. A wrap-up will follow in Section 6 and an appendix on planet migration in Appendix A. 2. Previous models The condensation line problem is a subject only partially explored. For the snowline ...
High-velocity collisions from the lunar cataclysm recorded in
... kept these orbits between 4.1 and 4.55 Gyr ago. Into this system, test asteroids were placed on non-planet-crossing orbits between 1.7 and 3.5 au, with all objects having eccentricity e < 0.3 and inclination i < 20◦ (Fig. 3a); full initial conditions are described in refs 12,24; see also Methods. Th ...
... kept these orbits between 4.1 and 4.55 Gyr ago. Into this system, test asteroids were placed on non-planet-crossing orbits between 1.7 and 3.5 au, with all objects having eccentricity e < 0.3 and inclination i < 20◦ (Fig. 3a); full initial conditions are described in refs 12,24; see also Methods. Th ...
Making More Terrestrial Planets
... of the formation of the terrestrial planets are presented. These Nbody integrations begin with 150–160 lunar-to-Mars size planetary embryos, with semi-major axes 0.3 < a < 2.0 AU, and include perturbations from Jupiter and Saturn. Two initial mass distributions are examined: approximately uniform ma ...
... of the formation of the terrestrial planets are presented. These Nbody integrations begin with 150–160 lunar-to-Mars size planetary embryos, with semi-major axes 0.3 < a < 2.0 AU, and include perturbations from Jupiter and Saturn. Two initial mass distributions are examined: approximately uniform ma ...