5 Comets, Asteroids, and Meteors
... Astronomers have discovered more than 100,000 asteroids, and they are constantly finding more. Most asteroids are small—less than a kilometer in diameter. Only Ceres, Pallas, and Vesta are more than 300 kilometers across. At one time, scientists thought that asteroids were the remains of a shattered ...
... Astronomers have discovered more than 100,000 asteroids, and they are constantly finding more. Most asteroids are small—less than a kilometer in diameter. Only Ceres, Pallas, and Vesta are more than 300 kilometers across. At one time, scientists thought that asteroids were the remains of a shattered ...
A Survey for “Normal” Irregular Satellites Around Neptune: Limits to
... km around the other giant planets Jupiter, Saturn, and Uranus (Sheppard & Jewitt 2003; Kavelaars et al. 2004; Sheppard et al. 2005). We model the irregular satellite size distribution through a differential power-law radius distribution of the form n(r)dr = Γr −q dr, where Γ and q are constants, r i ...
... km around the other giant planets Jupiter, Saturn, and Uranus (Sheppard & Jewitt 2003; Kavelaars et al. 2004; Sheppard et al. 2005). We model the irregular satellite size distribution through a differential power-law radius distribution of the form n(r)dr = Γr −q dr, where Γ and q are constants, r i ...
... population are naturally expected: the same mechanisms that scatter NEAs from the Main Belt (MB) to the nearEarth space, which are the mean motion and secular resonances, simultaneously scatter many times more smaller fragments together with the NEAs. Some of these smaller fragments eventually hit t ...
Dynamical impact of the Planet Nine scenario: N
... additional simulations using control orbits; the orbital elements of the control orbits have been obtained varying them randomly, within the ranges defined by their mean values and standard deviations (1σ). In our calculations, the Hermite integration scheme described by Makino (1991) and implemente ...
... additional simulations using control orbits; the orbital elements of the control orbits have been obtained varying them randomly, within the ranges defined by their mean values and standard deviations (1σ). In our calculations, the Hermite integration scheme described by Makino (1991) and implemente ...
Theme 10.1 -- Leftovers: Comets
... Introduction and History The word “comet” comes from Latin and Greek roots meaning “wearing long hair.” In other words, a comet looks like a star with long tendrils of hair dangling from it, as is clear in this picture. Not surprisingly, comets have only recently become understood physically. For th ...
... Introduction and History The word “comet” comes from Latin and Greek roots meaning “wearing long hair.” In other words, a comet looks like a star with long tendrils of hair dangling from it, as is clear in this picture. Not surprisingly, comets have only recently become understood physically. For th ...
2. Asteroids, Comets, and Planet Formation
... 1974). They are believed to reside in large numbers (1011-1012)in the most distant reaches of the solar system, in the so-called Oort cloud, which is estimated to be about 100 000 AU across. The cloud is believed to have formed early in the history of the solar system by ejection of material from th ...
... 1974). They are believed to reside in large numbers (1011-1012)in the most distant reaches of the solar system, in the so-called Oort cloud, which is estimated to be about 100 000 AU across. The cloud is believed to have formed early in the history of the solar system by ejection of material from th ...
the standing wave is
... M⊙ and accretor with mass of M2 = 13M⊙ that is wrapped by thick disk with pseudoatmosphere of A5III type. For the mass ratio of 0.223 the distance between the centers of the two components is A = 58R⊙. With the observer’s eyesight towards the center component are defined scopes of hot regions on dis ...
... M⊙ and accretor with mass of M2 = 13M⊙ that is wrapped by thick disk with pseudoatmosphere of A5III type. For the mass ratio of 0.223 the distance between the centers of the two components is A = 58R⊙. With the observer’s eyesight towards the center component are defined scopes of hot regions on dis ...
What it takes to make a planet
... One of the things that prompted the need for a better definition of a planet, and highlighted the difficulty with Pluto’s position, was the recent discoveries of more and more trans-Neptunian objects, thanks to new telescopes. Take UB313 for example. This is the body informally known as Xena, that’s ...
... One of the things that prompted the need for a better definition of a planet, and highlighted the difficulty with Pluto’s position, was the recent discoveries of more and more trans-Neptunian objects, thanks to new telescopes. Take UB313 for example. This is the body informally known as Xena, that’s ...
Powerpoint for today
... It takes 8 minutes for light to travel 1 AU, how long does it take for light to travel from Earth to Jupiter at its closest point to Earth in its orbit? A: 1 minute ...
... It takes 8 minutes for light to travel 1 AU, how long does it take for light to travel from Earth to Jupiter at its closest point to Earth in its orbit? A: 1 minute ...
Solar System - Big Spring ISD
... All attachments associated with this lesson are referenced in the body of the lesson. Due to considerations for grading or student assessment, attachments that are connected with Performance Indicators or serve as answer keys are available in the district site and are not accessible on the ...
... All attachments associated with this lesson are referenced in the body of the lesson. Due to considerations for grading or student assessment, attachments that are connected with Performance Indicators or serve as answer keys are available in the district site and are not accessible on the ...
Pluto or Bust - Laboratory for Atmospheric and Space Physics
... made an epic journey fraught with perils. Mr. Stern first started pushing for a Pl mission in the late 1980s, and NASA eventually signed on, putting the program the control of its Jet Propulsion Laboratory, which is managed by the California of Technology. That facility has run all missions to the o ...
... made an epic journey fraught with perils. Mr. Stern first started pushing for a Pl mission in the late 1980s, and NASA eventually signed on, putting the program the control of its Jet Propulsion Laboratory, which is managed by the California of Technology. That facility has run all missions to the o ...
Uranus Neptune ppt NOTES
... have been shattered by an impact, and is still putting itself back together – Long cracks or faults riddle its surface – Rolling hills adjacent to wrinkled terrain ...
... have been shattered by an impact, and is still putting itself back together – Long cracks or faults riddle its surface – Rolling hills adjacent to wrinkled terrain ...
DYNAMICAL EVOLUTION OF THE OORT CLOUD Paul R
... then rises rapidly out to about 20 AU before beginning to level off and asymptoticly approach a maximum value about ten times that at 1 AU. The number of comets passing through perihelion is 1.5, 2.1, 3.6, and 5.0 times the value at 1 AU at the orbits of Jupiter, Saturn, Uranus, and Neptune, respect ...
... then rises rapidly out to about 20 AU before beginning to level off and asymptoticly approach a maximum value about ten times that at 1 AU. The number of comets passing through perihelion is 1.5, 2.1, 3.6, and 5.0 times the value at 1 AU at the orbits of Jupiter, Saturn, Uranus, and Neptune, respect ...
satellite formation : spreading of rings beyond the roche radius
... have given birth to the satellite inside Tethys. Last, Lainey et al. (2012) have shown that the tidal dissipation inside Saturn is higher than previously thought, which allows the outward migration of all the satellites from the Roche radius to their present orbit within the age of the Solar System ...
... have given birth to the satellite inside Tethys. Last, Lainey et al. (2012) have shown that the tidal dissipation inside Saturn is higher than previously thought, which allows the outward migration of all the satellites from the Roche radius to their present orbit within the age of the Solar System ...
Neptune Trojans as a Testbed for Planet Formation
... do not owe their genesis to migration. As a planet migrates on timescales much longer than the local orbital period, it scatters neighboring planetesimals onto extremely elongated and inclined orbits by repeated close encounters (C03; Gomes 2003). Such scattering might explain the large velocity dis ...
... do not owe their genesis to migration. As a planet migrates on timescales much longer than the local orbital period, it scatters neighboring planetesimals onto extremely elongated and inclined orbits by repeated close encounters (C03; Gomes 2003). Such scattering might explain the large velocity dis ...
Uranus
... reflector (it took him over 200 attempts to make it!) – Prior to its discovery, Uranus had been seen, but not recognized as a planet (it had been designated 34 Tauri) ...
... reflector (it took him over 200 attempts to make it!) – Prior to its discovery, Uranus had been seen, but not recognized as a planet (it had been designated 34 Tauri) ...
What is a gas giant planet?
... What is a gas giant planet? • Jupiter, Saturn, Uranus, and Neptune are the gas giant planets. • Gas giants have deep, massive gas atmospheres, which are made up mostly of hydrogen and helium. They have no surface to stand on. • The gas giant planets are large and cold. ...
... What is a gas giant planet? • Jupiter, Saturn, Uranus, and Neptune are the gas giant planets. • Gas giants have deep, massive gas atmospheres, which are made up mostly of hydrogen and helium. They have no surface to stand on. • The gas giant planets are large and cold. ...
Chaotic motion in the Solar System
... chaos has been developed to describe this type of motion. The realization that deterministic chaos also can have profound effects on many macroscopic processes has provided another significant blow to the ‘‘clockwork’’ view of the Universe. A single pendulum can be viewed as a rigid mass constrained ...
... chaos has been developed to describe this type of motion. The realization that deterministic chaos also can have profound effects on many macroscopic processes has provided another significant blow to the ‘‘clockwork’’ view of the Universe. A single pendulum can be viewed as a rigid mass constrained ...
Uranus
... It takes 8 minutes for light to travel 1 AU, how long does it take for light to travel from Earth to Jupiter at its closest point to Earth in its orbit? A: 1 minute ...
... It takes 8 minutes for light to travel 1 AU, how long does it take for light to travel from Earth to Jupiter at its closest point to Earth in its orbit? A: 1 minute ...
The Asteroid Belt
... asteroids follow slightly elliptical stable orbits, orbiting the Sun in the same direction as the Earth. Typically the orbital periods of these asteroids range from 3 to 8 years. There are also a few special resonances where asteroids like to group together, such as the 3:2 resonance at 3.97 AU (wit ...
... asteroids follow slightly elliptical stable orbits, orbiting the Sun in the same direction as the Earth. Typically the orbital periods of these asteroids range from 3 to 8 years. There are also a few special resonances where asteroids like to group together, such as the 3:2 resonance at 3.97 AU (wit ...
ASTR 330: The Solar System Dr Conor Nixon Fall 2006
... KBOs and SDOs • Kuiper belt objects are actually clustered quite closely between 39 and 48 AU - stable orbital zones with respect to Neptune. • Eris lies at a=68 AU, but its 557-year orbit is highly elliptical, ranging from 38 to 100 AU, and inclined at 45 degrees. ...
... KBOs and SDOs • Kuiper belt objects are actually clustered quite closely between 39 and 48 AU - stable orbital zones with respect to Neptune. • Eris lies at a=68 AU, but its 557-year orbit is highly elliptical, ranging from 38 to 100 AU, and inclined at 45 degrees. ...
Colburn Earth Science Museum - Asheville Museum of Science
... are thought to be these complex hydrocarbons, which condense into dark red ice crystals on the surface. Within the atmosphere there appears to be the movement of ice, back and forth across hemispheres depending on the season. It is even believed that it snows on Pluto! These new findings shed light ...
... are thought to be these complex hydrocarbons, which condense into dark red ice crystals on the surface. Within the atmosphere there appears to be the movement of ice, back and forth across hemispheres depending on the season. It is even believed that it snows on Pluto! These new findings shed light ...
Neptune Mission Concept
... Triton's atmosphere has changed significantly since the Voyager flyby in 1989 – Nitrogen and methane ices move seasonally from hemisphere to hemisphere and the pressure of the atmosphere increases and decreases seasonally Will Triton’s enigmatic ...
... Triton's atmosphere has changed significantly since the Voyager flyby in 1989 – Nitrogen and methane ices move seasonally from hemisphere to hemisphere and the pressure of the atmosphere increases and decreases seasonally Will Triton’s enigmatic ...
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.