Comet Facts, Myths, and Legends
... A 28. The closer a comet is to the Sun, the brighter it will appear. A 29. The ancients thought comets were the power rays of supernatural beings. B 30. A meteor shower occurs when many comets at once pass over the Earth. ...
... A 28. The closer a comet is to the Sun, the brighter it will appear. A 29. The ancients thought comets were the power rays of supernatural beings. B 30. A meteor shower occurs when many comets at once pass over the Earth. ...
COMETS! - Santa Ana College
... telescopes and cameras used by backyard astronomers allow them to see these objects also. Not just the big telescopes can see them, as was the case in centuries past. If a large comet is heading toward us, you can be sure a lot of ordinary amateur astronomers around the world would see it as well, a ...
... telescopes and cameras used by backyard astronomers allow them to see these objects also. Not just the big telescopes can see them, as was the case in centuries past. If a large comet is heading toward us, you can be sure a lot of ordinary amateur astronomers around the world would see it as well, a ...
the instability of venus trojans
... in time and cover a period of up to 100 Myr. This time span is not long enough to answer the critical question of whether bodies trapped at the Lagrangian points of Venus in the early phases of the solar system evolution could have survived until the present. If Venus Trojans are found in the future ...
... in time and cover a period of up to 100 Myr. This time span is not long enough to answer the critical question of whether bodies trapped at the Lagrangian points of Venus in the early phases of the solar system evolution could have survived until the present. If Venus Trojans are found in the future ...
Irregular Satellites of the Planets: Products of Capture in the Early
... Annu. Rev. Astro. Astrophys. 2007.45:261-295. Downloaded from arjournals.annualreviews.org by University of Hawaii at Manoa Library on 09/20/07. For personal use only. ...
... Annu. Rev. Astro. Astrophys. 2007.45:261-295. Downloaded from arjournals.annualreviews.org by University of Hawaii at Manoa Library on 09/20/07. For personal use only. ...
On the formation of Uranus and Neptune
... shown in black, In each of the three panels, a different protoplanet grows to Saturn's mass at 2 x.105years: red (top), green (middle) and blue (bottom) . . . . . . . . . . 76 4.15 Set 5 runs in which Saturn grows at 4 x IO5 years- In the top panel the green protoplanet becomes Saturn; in the bottom ...
... shown in black, In each of the three panels, a different protoplanet grows to Saturn's mass at 2 x.105years: red (top), green (middle) and blue (bottom) . . . . . . . . . . 76 4.15 Set 5 runs in which Saturn grows at 4 x IO5 years- In the top panel the green protoplanet becomes Saturn; in the bottom ...
A two-stage formation process for the Oort comet cloud and its
... is on the inner edge of the innermost Oort cloud. Since Sedna’s inclination is small and the closest part of the innermost Oort cloud appears to be flattened (Brasser et al. 2006; Kaib & Quinn 2008), this might seem like a plausible scenario. The necessary central cluster density in the model of Bra ...
... is on the inner edge of the innermost Oort cloud. Since Sedna’s inclination is small and the closest part of the innermost Oort cloud appears to be flattened (Brasser et al. 2006; Kaib & Quinn 2008), this might seem like a plausible scenario. The necessary central cluster density in the model of Bra ...
Origin and Evolution of Trojan Asteroids
... In recent years, only a few new Trojans have been found to be brighter than absolute magnitude H = 9.5, and the population seems to be more or less complete down to this limit (H = 9.5 corresponds to a radius of 43 km for an assumed geometric albedo of 0.04; H = 10 corresponds to 34 km). Presently t ...
... In recent years, only a few new Trojans have been found to be brighter than absolute magnitude H = 9.5, and the population seems to be more or less complete down to this limit (H = 9.5 corresponds to a radius of 43 km for an assumed geometric albedo of 0.04; H = 10 corresponds to 34 km). Presently t ...
orbital resonances and chaos in the solar system
... The phenomenon of resonance is a familiar one to everybody from childhood. A very young child is delighted in a playground swing when an older companion drives the swing at its natural frequency and rapidly increases the swing amplitude; the older child accomplishes the same on her own without outsi ...
... The phenomenon of resonance is a familiar one to everybody from childhood. A very young child is delighted in a playground swing when an older companion drives the swing at its natural frequency and rapidly increases the swing amplitude; the older child accomplishes the same on her own without outsi ...
orbital perturbations of the galilean satellites during planetary
... over, and not activated. This instability model is known as the jumping-Jupiter model. Taken together, the initial conditions leading to the instability and the dynamical evolution of the planets were likely different from those originally envisioned in the Nice model. Nesvorný (2011) and Nesvorný ...
... over, and not activated. This instability model is known as the jumping-Jupiter model. Taken together, the initial conditions leading to the instability and the dynamical evolution of the planets were likely different from those originally envisioned in the Nice model. Nesvorný (2011) and Nesvorný ...
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 ...
Early Dynamical Evolution of the Solar System: Pinning Down the
... behave in a qualitatively similar way. Namely, as they migrate from the outer disk inwards, they too become 1 It must be noted that capture into 5:3 MMR is less probable, since it is a second order resonance. Furthermore, even if Jupiter and Saturn are captured, subsequent motion can be unstable (Mo ...
... behave in a qualitatively similar way. Namely, as they migrate from the outer disk inwards, they too become 1 It must be noted that capture into 5:3 MMR is less probable, since it is a second order resonance. Furthermore, even if Jupiter and Saturn are captured, subsequent motion can be unstable (Mo ...
Orbital Perturbations of the Galilean Satellites During Planetary
... original orbits of Saturn and Uranus can significantly increase the success rate of instability simulations. This is because, more often than not at least one ice giant is ejected from the Solar System during the instability. The five-planet cases considered in Nesvorný (2011) and Nesvorný & Morbi ...
... original orbits of Saturn and Uranus can significantly increase the success rate of instability simulations. This is because, more often than not at least one ice giant is ejected from the Solar System during the instability. The five-planet cases considered in Nesvorný (2011) and Nesvorný & Morbi ...
Presentation in PDF format.
... 2. Some early cometary observations are quoted by Olivier (in “Comets”, 1930). Thus, on a Bablyonian tablet dated around 1140 BC and referring to a military campaign, we read: “a comet arose whose body was bright like the day, while from its luminous body a tail extended, like the sting of a scorpio ...
... 2. Some early cometary observations are quoted by Olivier (in “Comets”, 1930). Thus, on a Bablyonian tablet dated around 1140 BC and referring to a military campaign, we read: “a comet arose whose body was bright like the day, while from its luminous body a tail extended, like the sting of a scorpio ...
The Problem with Pluto
... studying the orbits of Uranus and Neptune predicted that Pluto was at least as big as Earth and immediately classified it as the ninth planet. Pluto quickly rose to the status of a public icon, embraced by Americans as the first planet discovered by one of their own countrymen. Astronomers aided by ...
... studying the orbits of Uranus and Neptune predicted that Pluto was at least as big as Earth and immediately classified it as the ninth planet. Pluto quickly rose to the status of a public icon, embraced by Americans as the first planet discovered by one of their own countrymen. Astronomers aided by ...
On the chaotic orbit of comet 29P/Schwassmann
... increased from the original 5.7 au to 10 au. It remained roughly in this interval during several hundred thousand years and finally was stabilized at a value of 4.3 au. A close approach to Jupiter caused the change of the comet’s orbit to larger heliocentric distances. In our integration, we follow ...
... increased from the original 5.7 au to 10 au. It remained roughly in this interval during several hundred thousand years and finally was stabilized at a value of 4.3 au. A close approach to Jupiter caused the change of the comet’s orbit to larger heliocentric distances. In our integration, we follow ...
Trans-Neptunian Objects as Natural Probes to the Unknown Solar System
... ∼4.5 Gyr. This scenario also predicts that the protoplanetary disk was composed of planetesimals in very cold orbital conditions, namely objects on near circular (eccentricities, e, ∼0) and very low inclination, i, orbits. The distribution of mass in the disk is often described by its surface densit ...
... ∼4.5 Gyr. This scenario also predicts that the protoplanetary disk was composed of planetesimals in very cold orbital conditions, namely objects on near circular (eccentricities, e, ∼0) and very low inclination, i, orbits. The distribution of mass in the disk is often described by its surface densit ...
Strange Lights in the Sky - Beck-Shop
... Earth. Next comes the asteroid belt, a region of rocky debris containing thousands of subplanet-sized bodies that together make up less mass than Earth’s Moon. Next come the giant planets, including Jupiter and Saturn. And the outer zone contains the comets, icy bodies of frozen gases and dust. Most ...
... Earth. Next comes the asteroid belt, a region of rocky debris containing thousands of subplanet-sized bodies that together make up less mass than Earth’s Moon. Next come the giant planets, including Jupiter and Saturn. And the outer zone contains the comets, icy bodies of frozen gases and dust. Most ...
Jupiter: Cosmic Jekyll and Hyde - Mary Ann Liebert, Inc. publishers
... Jupiter will perturb planetesimals situated between the orbits of Mars and Jupiter into the inner Solar System, and that the absence of Jupiter can protect the terrestrial planets more than a Jupiter having any of a range of masses. Most relevant to the Wetherill (1994) study and this work, Horner a ...
... Jupiter will perturb planetesimals situated between the orbits of Mars and Jupiter into the inner Solar System, and that the absence of Jupiter can protect the terrestrial planets more than a Jupiter having any of a range of masses. Most relevant to the Wetherill (1994) study and this work, Horner a ...
DYNAMICS OF THE GIANT PLANETS OF THE SOLAR SYSTEM IN
... stars fulfill the conditions necessary to avoid type II migration: either the planets have comparable masses, the outermost one is the most massive, or they are too separated to have sculpted overlapping gaps in their primordial gas disks. The second model (Tsiganis et al. 2005; Gomes et al. 2005), ...
... stars fulfill the conditions necessary to avoid type II migration: either the planets have comparable masses, the outermost one is the most massive, or they are too separated to have sculpted overlapping gaps in their primordial gas disks. The second model (Tsiganis et al. 2005; Gomes et al. 2005), ...
New Horizons Mission Design for the Pluto-Kuiper Belt
... January 2006, it would be infeasible to consider any indirect JGA trajectories. On the other hand, due to programmatic concerns, the use of RTG also disfavors the indirect JGA trajectories. Because of the RTG carried onboard the spacecraft, any trajectories involving Earth flybys would raise concern ...
... January 2006, it would be infeasible to consider any indirect JGA trajectories. On the other hand, due to programmatic concerns, the use of RTG also disfavors the indirect JGA trajectories. Because of the RTG carried onboard the spacecraft, any trajectories involving Earth flybys would raise concern ...
Triton`s Evolution with a Primordial Neptunian Satellite System
... Introduction: Neptune has substantially fewer and mostly smaller satellites than the other gas planets. The one massive satellite, Triton, is thought responsible for this. Triton’s retrograde orbit implies that it is a captured object, likely from a separated KBO binary [1]. If Neptune had a primord ...
... Introduction: Neptune has substantially fewer and mostly smaller satellites than the other gas planets. The one massive satellite, Triton, is thought responsible for this. Triton’s retrograde orbit implies that it is a captured object, likely from a separated KBO binary [1]. If Neptune had a primord ...
Lesson Plan D2 Comets and Meteors
... causing devastation over an area of about 5000 square kilometers. Students should be encouraged to suggest ...
... causing devastation over an area of about 5000 square kilometers. Students should be encouraged to suggest ...
Asteroids - Elements Magazine
... are partially to totally shattered, and subsequent gravitational attraction between fragments leads to reaccumulation, which fi nally forms an entire family of large and small objects (see below). Accordingly, most of the smaller asteroids are thought to be piles of rubble held together loosely by g ...
... are partially to totally shattered, and subsequent gravitational attraction between fragments leads to reaccumulation, which fi nally forms an entire family of large and small objects (see below). Accordingly, most of the smaller asteroids are thought to be piles of rubble held together loosely by g ...
Theory of planet formation
... Pre-1995 theory failed to predict: – high frequency of planets – existence of planets much more massive than Jupiter – sharp upper limit of around 15 MJupiter – giant planets at very small semi-major axes – high eccentricities – high obliquities Theory reliably predicts: – planets should not exist ...
... Pre-1995 theory failed to predict: – high frequency of planets – existence of planets much more massive than Jupiter – sharp upper limit of around 15 MJupiter – giant planets at very small semi-major axes – high eccentricities – high obliquities Theory reliably predicts: – planets should not exist ...
Here - ScienceA2Z.com
... Asteroids are the small rocky objects in the Solar System. The largest asteroid is Ceres, which is 933 kilometers (580 miles) across. The smallest asteroids that we've observed in detail are only tens of meters in size, but there are probably a great number of small rocks in space that are currently ...
... Asteroids are the small rocky objects in the Solar System. The largest asteroid is Ceres, which is 933 kilometers (580 miles) across. The smallest asteroids that we've observed in detail are only tens of meters in size, but there are probably a great number of small rocks in space that are currently ...
Kuiper belt
The Kuiper belt /ˈkaɪpər/ or /'køypǝr/ (as in Dutch), sometimes called the Edgeworth–Kuiper belt, is a region of the Solar System beyond the planets, extending from the orbit of Neptune (at 30 AU) to approximately 50 AU from the Sun. It is similar to the asteroid belt, but it is far larger—20 times as wide and 20 to 200 times as massive. Like the asteroid belt, it consists mainly of small bodies, or remnants from the Solar System's formation. Although many asteroids are composed primarily of rock and metal, most Kuiper belt objects are composed largely of frozen volatiles (termed ""ices""), such as methane, ammonia and water. The Kuiper belt is home to three officially recognized dwarf planets: Pluto, Haumea, and Makemake. Some of the Solar System's moons, such as Neptune's Triton and Saturn's Phoebe, are also thought to have originated in the region.The Kuiper belt was named after Dutch-American astronomer Gerard Kuiper, though he did not actually predict its existence. In 1992, 1992 QB1 was discovered, the first Kuiper belt object (KBO) since Pluto. Since its discovery, the number of known KBOs has increased to over a thousand, and more than 100,000 KBOs over 100 km (62 mi) in diameter are thought to exist. The Kuiper belt was initially thought to be the main repository for periodic comets, those with orbits lasting less than 200 years. However, studies since the mid-1990s have shown that the belt is dynamically stable, and that comets' true place of origin is the scattered disc, a dynamically active zone created by the outward motion of Neptune 4.5 billion years ago; scattered disc objects such as Eris have extremely eccentric orbits that take them as far as 100 AU from the Sun.The Kuiper belt should not be confused with the hypothesized Oort cloud, which is a thousand times more distant and is not flat. The objects within the Kuiper belt, together with the members of the scattered disc and any potential Hills cloud or Oort cloud objects, are collectively referred to as trans-Neptunian objects (TNOs).Pluto is likely the largest and most-massive member of the Kuiper belt and the largest and the second-most-massive known TNO, surpassed only by Eris in the scattered disc. Originally considered a planet, Pluto's status as part of the Kuiper belt caused it to be reclassified as a dwarf planet in 2006. It is compositionally similar to many other objects of the Kuiper belt, and its orbital period is characteristic of a class of KBOs, known as ""plutinos"", that share the same 2:3 resonance with Neptune.