Comet Facts, Myths, and Legends
... Tuttle. As Comet Swift-Tuttle moves closer to the Sun every 120 years, it leaves behind a trail of dust debris that provides the ingredients for a spectacular fireworks display seen in July and August. As Earth passes through the remnants of this dust tail, we can see on a clear night the Perseid me ...
... Tuttle. As Comet Swift-Tuttle moves closer to the Sun every 120 years, it leaves behind a trail of dust debris that provides the ingredients for a spectacular fireworks display seen in July and August. As Earth passes through the remnants of this dust tail, we can see on a clear night the Perseid me ...
Solar System Formation
... later diminishes due to friction -1902 Belot : Encounter between “tubular vortex” and a cloud at rest -1900 Moulton & Chamberlin : Critic of the KantLaplace model: angular momentum Problem -1916 Chamberlin : close encounter with a star takes matter from the Sun=>Formation of a spiral nebulae=>coolin ...
... later diminishes due to friction -1902 Belot : Encounter between “tubular vortex” and a cloud at rest -1900 Moulton & Chamberlin : Critic of the KantLaplace model: angular momentum Problem -1916 Chamberlin : close encounter with a star takes matter from the Sun=>Formation of a spiral nebulae=>coolin ...
Intro To The Solar System
... • About 4.5 billion years ago it is believed that the Solar System consisted of a large cloud of gas and dust, called a nebula. • This cloud started rotating, and the dust particles combined to form planetesimals. As the cloud rotated faster, it flattened, and the planetesimals formed- Eventually fo ...
... • About 4.5 billion years ago it is believed that the Solar System consisted of a large cloud of gas and dust, called a nebula. • This cloud started rotating, and the dust particles combined to form planetesimals. As the cloud rotated faster, it flattened, and the planetesimals formed- Eventually fo ...
Introduction to Comets - Mr. Hill`s Science Website
... Swift-Tuttle moves closer to the Sun every 120 years, it leaves behind a trail of dust debris that provides the ingredients for a spectacular fireworks display seen in July and August. As Earth passes through the remnants of this dust tail, we can see on a clear night the Perseid meteor shower. Come ...
... Swift-Tuttle moves closer to the Sun every 120 years, it leaves behind a trail of dust debris that provides the ingredients for a spectacular fireworks display seen in July and August. As Earth passes through the remnants of this dust tail, we can see on a clear night the Perseid meteor shower. Come ...
Lecture13.v2 - Lick Observatory
... What is Pluto? IAU decision, cont’d • Defined new class of objects called "dwarf planets" • “Planets" and "dwarf planets" are two distinct classes ...
... What is Pluto? IAU decision, cont’d • Defined new class of objects called "dwarf planets" • “Planets" and "dwarf planets" are two distinct classes ...
Today`s Powerpoint
... Rocky fragments ranging from 940 km across (Ceres) to < 0.1 km. 100,000 known. Most in Asteroid Belt, at about 2-3 AU, between Mars and Jupiter. The Trojan asteroids orbit 60 o ahead of and behind Jupiter. Some asteroids cross Earth's orbit. Their orbits were probably disrupted by Jupiter's gravity. ...
... Rocky fragments ranging from 940 km across (Ceres) to < 0.1 km. 100,000 known. Most in Asteroid Belt, at about 2-3 AU, between Mars and Jupiter. The Trojan asteroids orbit 60 o ahead of and behind Jupiter. Some asteroids cross Earth's orbit. Their orbits were probably disrupted by Jupiter's gravity. ...
PHYS101 Sec 001 Hour Exam No. 3 Preview 2 Page: 1 1 It
... d. a doughnut-shaped region with objects above and below the plane of the solar system. 23 Light that has been spread out to show the frequencies or colors that are present is called a. a spectrum. b. an absorption diagram. c. a speculum. d. a frequency diagram. e. an energy level diagram. 24 The Ku ...
... d. a doughnut-shaped region with objects above and below the plane of the solar system. 23 Light that has been spread out to show the frequencies or colors that are present is called a. a spectrum. b. an absorption diagram. c. a speculum. d. a frequency diagram. e. an energy level diagram. 24 The Ku ...
Astronomy Lecture 3c
... 56. The most common meteorites are ? Meteorites. A.Stony B.Stony-Iron C.Iron 57. ? is the only moon in the Solar System with a significant atmosphere; it seems to have wind, liquid methane rain, as well as lakes and seas of liquid methane and ethane. A.Enceladus B.Mimas C.Titan D.Tethys E.Dione 58. ...
... 56. The most common meteorites are ? Meteorites. A.Stony B.Stony-Iron C.Iron 57. ? is the only moon in the Solar System with a significant atmosphere; it seems to have wind, liquid methane rain, as well as lakes and seas of liquid methane and ethane. A.Enceladus B.Mimas C.Titan D.Tethys E.Dione 58. ...
25.4 The Outer Solar System
... Dwarf Planets Other known dwarf planets include Eris and the asteroid Ceres. Many more solar system objects will likely be named dwarf planets once their shapes can be verified as being spherical. Not all astronomers agree on what defines a planet, and the classification of dwarf planet may be subje ...
... Dwarf Planets Other known dwarf planets include Eris and the asteroid Ceres. Many more solar system objects will likely be named dwarf planets once their shapes can be verified as being spherical. Not all astronomers agree on what defines a planet, and the classification of dwarf planet may be subje ...
The Formation of Uranus and Neptune in the Jupiter
... the cores must have accreted a signi cant amount of gas. Jupiter was most likely the largest core and thus the rst to reach this point since it is closest to the Sun, where the disk density was highest and the timescales shortest. Perhaps Saturn's core was larger than the others (due to stochastic ...
... the cores must have accreted a signi cant amount of gas. Jupiter was most likely the largest core and thus the rst to reach this point since it is closest to the Sun, where the disk density was highest and the timescales shortest. Perhaps Saturn's core was larger than the others (due to stochastic ...
Solar System
... Age of the Solar System • All objects in the Solar System seem to have formed at nearly the same time, out of the same original cloud of gas and dust • Radioactive dating of rocks from the Earth, Moon, and some asteroids suggests an age of about 4.5 billion yrs • A similar age is found for the Sun ...
... Age of the Solar System • All objects in the Solar System seem to have formed at nearly the same time, out of the same original cloud of gas and dust • Radioactive dating of rocks from the Earth, Moon, and some asteroids suggests an age of about 4.5 billion yrs • A similar age is found for the Sun ...
Solar System
... Age of the Solar System • All objects in the Solar System seem to have formed at nearly the same time, out of the same original cloud of gas and dust • Radioactive dating of rocks from the Earth, Moon, and some asteroids suggests an age of about 4.5 billion yrs • A similar age is found for the Sun ...
... Age of the Solar System • All objects in the Solar System seem to have formed at nearly the same time, out of the same original cloud of gas and dust • Radioactive dating of rocks from the Earth, Moon, and some asteroids suggests an age of about 4.5 billion yrs • A similar age is found for the Sun ...
Origins of our Solar System
... ranging in size from a few meters to 1,000km in diameter. Most asteroids are located in the asteroid belt located between Mars and Jupiter. The asteroid belt circles the Sun and is most likely materials that would have coalesced into a planet, but Jupiter’s gravity prevented it from occurring. ...
... ranging in size from a few meters to 1,000km in diameter. Most asteroids are located in the asteroid belt located between Mars and Jupiter. The asteroid belt circles the Sun and is most likely materials that would have coalesced into a planet, but Jupiter’s gravity prevented it from occurring. ...
Falling Stars
... thousands! Since no telescopes or fancy equipment were needed to see the storm, ordinary people were able to see that wonderful and rare sight. Many artists tried to paint pictures of the “rain of stars” that fell so heavily that night. Newspapers ran many stories about the storm. What they saw was ...
... thousands! Since no telescopes or fancy equipment were needed to see the storm, ordinary people were able to see that wonderful and rare sight. Many artists tried to paint pictures of the “rain of stars” that fell so heavily that night. Newspapers ran many stories about the storm. What they saw was ...
Planetary Satellites,Asteroids,Comets
... time of writing a total of 118 such moons are known. In the past few years the number of discovered moons has doubled, with each of the giant planets having had several small (below 20 km) moons identified by astronomers using large ground-based telescopes. It is anticipated, however, that the numbe ...
... time of writing a total of 118 such moons are known. In the past few years the number of discovered moons has doubled, with each of the giant planets having had several small (below 20 km) moons identified by astronomers using large ground-based telescopes. It is anticipated, however, that the numbe ...
Collapse: Method 2
... Stage 3. At densities of 1011 cm-3 and within a radius of 1014 cm the gas becomes opaque to the dust radiation even at 300microns. The energy released is trapped and the temperature rises. As the temperature ascends, the opacity also ascends. The core suddenly switches from isothermal to adiabatic. ...
... Stage 3. At densities of 1011 cm-3 and within a radius of 1014 cm the gas becomes opaque to the dust radiation even at 300microns. The energy released is trapped and the temperature rises. As the temperature ascends, the opacity also ascends. The core suddenly switches from isothermal to adiabatic. ...
Birth of the Solar System
... Summarize general features of Solar System Any model for formation of the solar system must explain large number of observations ...
... Summarize general features of Solar System Any model for formation of the solar system must explain large number of observations ...
Jupiter: friend or foe An answer
... impact rate on Earth as a function of giant planet mass are not sensitive to the precise form of N 0(a). A total of 105 test particles were created using the cumulative probability derived from equation 1, enough for us to obtain reasonable collision statistics. The remaining orbital elements were r ...
... impact rate on Earth as a function of giant planet mass are not sensitive to the precise form of N 0(a). A total of 105 test particles were created using the cumulative probability derived from equation 1, enough for us to obtain reasonable collision statistics. The remaining orbital elements were r ...
Jupiter: friend or foe An answer
... impact rate on Earth as a function of giant planet mass are not sensitive to the precise form of N 0(a). A total of 105 test particles were created using the cumulative probability derived from equation 1, enough for us to obtain reasonable collision statistics. The remaining orbital elements were r ...
... impact rate on Earth as a function of giant planet mass are not sensitive to the precise form of N 0(a). A total of 105 test particles were created using the cumulative probability derived from equation 1, enough for us to obtain reasonable collision statistics. The remaining orbital elements were r ...
The Solar Nebula
... detect members of a population of ice and rock conglomerates in a region called the Kuiper Belt, which is believed to supply most of the short-period comets like Halley’s comet. Extending even further out into space, astronomers suspect that a spherical cloud called the Oort cloud contains billions ...
... detect members of a population of ice and rock conglomerates in a region called the Kuiper Belt, which is believed to supply most of the short-period comets like Halley’s comet. Extending even further out into space, astronomers suspect that a spherical cloud called the Oort cloud contains billions ...
Quiz Comets
... The presence of C-type asteroids in the outer asteroid belt suggests that a. asteroids are the remains of material that failed to form into a planet. b. they were "pushed" there by the force of the solar wind over the course of billions of years. c. none of these choices. They are found in the inner ...
... The presence of C-type asteroids in the outer asteroid belt suggests that a. asteroids are the remains of material that failed to form into a planet. b. they were "pushed" there by the force of the solar wind over the course of billions of years. c. none of these choices. They are found in the inner ...
Comets- Visitors from the Frozen Edge of the Solar System
... the nucleus is affected by the radiation pressure of the sunlight. This primarily acts on the smaller and thus lighter of the solid grains, spreading them out into more of a curvy or fan-shaped tail, rendered visible by the way the grains reflect sunlight to appear with a yellowish colour. Larger du ...
... the nucleus is affected by the radiation pressure of the sunlight. This primarily acts on the smaller and thus lighter of the solid grains, spreading them out into more of a curvy or fan-shaped tail, rendered visible by the way the grains reflect sunlight to appear with a yellowish colour. Larger du ...
Origin of the Solar System
... proceeds, the gravitational energy released will be partitioned equally between radiation and heating. If this continues long enough, the radiative flux from the protostar will become important in shaping its surroundings, e.g., by heating the surrounding dust. The second is that the continued decre ...
... proceeds, the gravitational energy released will be partitioned equally between radiation and heating. If this continues long enough, the radiative flux from the protostar will become important in shaping its surroundings, e.g., by heating the surrounding dust. The second is that the continued decre ...
Quiz # 4 - Oglethorpe University
... A) four small planets close to the Sun and four large planets far from the Sun B) three small planets close to the Sun and five large planets far from the Sun C) two large planets close to the Sun, three small planets next out, and four large planets farthest from the Sun D) three small planets clos ...
... A) four small planets close to the Sun and four large planets far from the Sun B) three small planets close to the Sun and five large planets far from the Sun C) two large planets close to the Sun, three small planets next out, and four large planets farthest from the Sun D) three small planets clos ...
Oort cloud
The Oort cloud (/ˈɔrt/ or /ˈʊərt/) or Öpik–Oort cloud, named after Dutch astronomer Jan Oort and Estonian astronomer Ernst Öpik, is a theoretical spherical cloud of predominantly icy planetesimals believed to surround the Sun at a distance of up to around 100,000 AU (2 ly). This places it at almost half of the distance to Proxima Centauri, the nearest star to the Sun, and in interstellar space. The Kuiper belt and the scattered disc, the other two reservoirs of trans-Neptunian objects, are less than one thousandth as far from the Sun as the Oort cloud. The outer limit of the Oort cloud defines the cosmographical boundary of the Solar System and the region of the Sun's gravitational dominance.The Oort cloud is thought to comprise two regions: a spherical outer Oort cloud and a disc-shaped inner Oort cloud, or Hills cloud. Objects in the Oort cloud are largely composed of ices, such as water, ammonia, and methane.Astronomers conjecture that the matter composing the Oort cloud formed closer to the Sun and was scattered far into space by the gravitational effects of the giant planets early in the Solar System's evolution. Although no confirmed direct observations of the Oort cloud have been made, it may be the source of all long-period and Halley-type comets entering the inner Solar System, and many of the centaurs and Jupiter-family comets as well. The outer Oort cloud is only loosely bound to the Solar System, and thus is easily affected by the gravitational pull both of passing stars and of the Milky Way itself. These forces occasionally dislodge comets from their orbits within the cloud and send them towards the inner Solar System. Based on their orbits, most of the short-period comets may come from the scattered disc, but some may still have originated from the Oort cloud.