The Family of the Sun
... Note: Though this is one of the best introductions to space and solar system scale you can do with your students, if it’s just not possible to do the Planet Walk due to lack of space, students can still make an accurate scale using the Toilet Paper Solar System activity. The following information ca ...
... Note: Though this is one of the best introductions to space and solar system scale you can do with your students, if it’s just not possible to do the Planet Walk due to lack of space, students can still make an accurate scale using the Toilet Paper Solar System activity. The following information ca ...
Chapter 6 The Outer Solar System © 2010 Pearson Education, Inc.
... plane, aligned with the plane of planetary orbits, orbiting in the same direction as the planets • Oort cloud comets were once closer to the Sun, ...
... plane, aligned with the plane of planetary orbits, orbiting in the same direction as the planets • Oort cloud comets were once closer to the Sun, ...
Chapter 2: Mercury
... grains became pebbles and boulder-sized crags, which collided and coalesced – a process called accretion - forming larger objects known as planetesimals. These planetesimals eventually accreted to form the planets of the Solar System. The outer gas giant planets, orbiting within the cooler regions o ...
... grains became pebbles and boulder-sized crags, which collided and coalesced – a process called accretion - forming larger objects known as planetesimals. These planetesimals eventually accreted to form the planets of the Solar System. The outer gas giant planets, orbiting within the cooler regions o ...
File - Mrs. Phillips` Physical Science Webpage
... • Calculations show that a composition of only hydrogen and helium should result in an even greater disparity than that….the core is indicated to be as much as 10x the mass of Earth. • Actual composition is obviously unknown but theorized to be composed of similar materials to the terrestrials – mol ...
... • Calculations show that a composition of only hydrogen and helium should result in an even greater disparity than that….the core is indicated to be as much as 10x the mass of Earth. • Actual composition is obviously unknown but theorized to be composed of similar materials to the terrestrials – mol ...
L8 Condensation
... composition of the nebula as it was 4.6 billion years ago. The most primitive sub-class are so called CI-chondrites. In their appearance, these mostly small, black, and very friable rocks remind more of a piece of tar or charcoal than of a stone. They contain a large fraction of water (bound in sili ...
... composition of the nebula as it was 4.6 billion years ago. The most primitive sub-class are so called CI-chondrites. In their appearance, these mostly small, black, and very friable rocks remind more of a piece of tar or charcoal than of a stone. They contain a large fraction of water (bound in sili ...
Solutions to End-of-Chapter Problems (Chapter 2)
... telescope would make a difference, illustrating a misconception about telescopes being able to “see through” things that our eyes cannot see through. Building on this idea, you can also foreshadow later discussions of nonvisible light by pointing out that while no telescope can help the problem in v ...
... telescope would make a difference, illustrating a misconception about telescopes being able to “see through” things that our eyes cannot see through. Building on this idea, you can also foreshadow later discussions of nonvisible light by pointing out that while no telescope can help the problem in v ...
SkyWatcher - Boise Astronomical Society
... In a cosmic coincidence, three comets will soon be approaching Earth—and astronomers want you to help study them. This global campaign, which will begin at the end of January when the first comet is bright enough, will enlist amateur astronomers to help researchers continuously monitor how the comet ...
... In a cosmic coincidence, three comets will soon be approaching Earth—and astronomers want you to help study them. This global campaign, which will begin at the end of January when the first comet is bright enough, will enlist amateur astronomers to help researchers continuously monitor how the comet ...
The orbital history of two periodic comets encountering Saturn
... Based on the orbit given in Table 1, a set of 99 variational orbits were derived, of Gaussian distribution in each element, with standard deviations ten times the formal errors given in Table 1 and the original elements as mean values. These orbital elements, plus the original orbit, were used in a ...
... Based on the orbit given in Table 1, a set of 99 variational orbits were derived, of Gaussian distribution in each element, with standard deviations ten times the formal errors given in Table 1 and the original elements as mean values. These orbital elements, plus the original orbit, were used in a ...
Regular and Chaotic Dynamics in the Mean
... ϖ, Ω, λj, ϖj, Ωj are orbital angles in the usual notation (index j goes over N planets). The MMR occurs when σk,k,l,l,m,m = 0, where σk,k,l,l,m,m is the time derivative of σk,k,l,l,m,m given by equation (1). In the case of asteroid motion, the secular frequencies ϖ, ϖj, Ω, Ωj are small compared to t ...
... ϖ, Ω, λj, ϖj, Ωj are orbital angles in the usual notation (index j goes over N planets). The MMR occurs when σk,k,l,l,m,m = 0, where σk,k,l,l,m,m is the time derivative of σk,k,l,l,m,m given by equation (1). In the case of asteroid motion, the secular frequencies ϖ, ϖj, Ω, Ωj are small compared to t ...
ELED 303
... Earth has a radius of about 6400 km and a concentric shell-like structure. At the center is a dense core with a diameter of about 3500 km composed mostly of nickel and iron. The inner part of the core is solid, with a density approaching 14 times that of water; the outer is liquid. Currents in the l ...
... Earth has a radius of about 6400 km and a concentric shell-like structure. At the center is a dense core with a diameter of about 3500 km composed mostly of nickel and iron. The inner part of the core is solid, with a density approaching 14 times that of water; the outer is liquid. Currents in the l ...
Kuiper Belt, Oort Cloud and TNOs
... and dust of the primordial Solar System disk, the four giant planets (Jupiter, Saturn, Uranus and Neptune) were originally found on near-circular orbits between ~5.5 and ~17 AU, much more closely spaced and more compact than in the present. • A large, dense disk of small, rock and ice planetesimals, ...
... and dust of the primordial Solar System disk, the four giant planets (Jupiter, Saturn, Uranus and Neptune) were originally found on near-circular orbits between ~5.5 and ~17 AU, much more closely spaced and more compact than in the present. • A large, dense disk of small, rock and ice planetesimals, ...
Comets
... When Comet Hale-Bopp was discovered, it was still 7.15 AU from Earth, halfway between the orbits of Jupiter and Saturn. Comets aren’t usually discovered until they’re much closer, causing scientists to predict that Hale-Bopp was an unusually large comet and one that would become quite bright during ...
... When Comet Hale-Bopp was discovered, it was still 7.15 AU from Earth, halfway between the orbits of Jupiter and Saturn. Comets aren’t usually discovered until they’re much closer, causing scientists to predict that Hale-Bopp was an unusually large comet and one that would become quite bright during ...
Metamorphic Rocks
... and/or fluid conditions at depths below the Earth’s surface. This action results in changes in mineral composition and texture while the rock remains in a solid state (meaning the rock does not melt). Metamorphic rocks can be derived from igneous, sedimentary, or even from other metamorphic rocks. T ...
... and/or fluid conditions at depths below the Earth’s surface. This action results in changes in mineral composition and texture while the rock remains in a solid state (meaning the rock does not melt). Metamorphic rocks can be derived from igneous, sedimentary, or even from other metamorphic rocks. T ...
Where do Comets come from?
... carefully avoid any close encounters with Neptune. The KBOs are said to be on “resonant orbits”, so for example, they go around the Sun three times for every four Neptune orbits, or five times for every six. This way they never get close. Why is this? Perhaps all these ice worlds formed in the proto ...
... carefully avoid any close encounters with Neptune. The KBOs are said to be on “resonant orbits”, so for example, they go around the Sun three times for every four Neptune orbits, or five times for every six. This way they never get close. Why is this? Perhaps all these ice worlds formed in the proto ...
A noble record
... When stars end their lives in supernova explosions, they eject small micrometre sized (or less) particles that join the interstellar medium and can become part of a dense molecular cloud. Such grains in one particular interstellar cloud were caught up in the developing solar nebula. Some of the grai ...
... When stars end their lives in supernova explosions, they eject small micrometre sized (or less) particles that join the interstellar medium and can become part of a dense molecular cloud. Such grains in one particular interstellar cloud were caught up in the developing solar nebula. Some of the grai ...
Focus on Learning - earthjay science
... *This is a partial list of interest sections and specialties of associated societies affiliated with the Geological understand the origin of Earth and its deSociety of America (www.geosociety.org) and the American Geophysical Union (www.agu.org), two provelopment through time. Thus, it strives to fe ...
... *This is a partial list of interest sections and specialties of associated societies affiliated with the Geological understand the origin of Earth and its deSociety of America (www.geosociety.org) and the American Geophysical Union (www.agu.org), two provelopment through time. Thus, it strives to fe ...
Galileo`s The Starry Messenger
... part seems to surround and to pervade the whole hemisphere, while the darker part discolors the moon’s surface like a kind of cloud, and makes it appear covered with spots. Now those spots which are fairly dark and rather large are plain to everyone and have been seen throughout the ages; these I sh ...
... part seems to surround and to pervade the whole hemisphere, while the darker part discolors the moon’s surface like a kind of cloud, and makes it appear covered with spots. Now those spots which are fairly dark and rather large are plain to everyone and have been seen throughout the ages; these I sh ...
File
... Though Jupiter wasn’t expected to have a ring, Voyager 1 was programmed to look for one just in case; Saturn’s rings, of course, were well known, and Uranus’s rings had been discovered only a few years earlier during ground-based observations. The Voyager 1 photograph indeed showed a wispy ring of m ...
... Though Jupiter wasn’t expected to have a ring, Voyager 1 was programmed to look for one just in case; Saturn’s rings, of course, were well known, and Uranus’s rings had been discovered only a few years earlier during ground-based observations. The Voyager 1 photograph indeed showed a wispy ring of m ...
In Orbit
... Newton’s Laws of Motion are at the heart of many physical forces that are experienced on Earth. Moreover, the International Space Station (ISS) provides an excellent opportunity to introduce and investigate Newton’s Laws of Motion via orbits. The ISS weighs nearly one million pounds (more than 450 m ...
... Newton’s Laws of Motion are at the heart of many physical forces that are experienced on Earth. Moreover, the International Space Station (ISS) provides an excellent opportunity to introduce and investigate Newton’s Laws of Motion via orbits. The ISS weighs nearly one million pounds (more than 450 m ...
Galileo
... Surely it is a great thing to increase the numerous host of fixed stars previously visible to the unaided vision, adding countless more which have never before been seen, exposing these plainly to the eye in numbers ten times exceeding the old and familiar stars. It is a very beautiful thing, and mo ...
... Surely it is a great thing to increase the numerous host of fixed stars previously visible to the unaided vision, adding countless more which have never before been seen, exposing these plainly to the eye in numbers ten times exceeding the old and familiar stars. It is a very beautiful thing, and mo ...
The Chemical Composition of an Extrasolar Kuiper-Belt
... Kuiper-Belt-Object analog into the white dwarf’s tidal radius. This finding shows that analogs to objects in our Kuiper Belt exist around other stars and could be responsible for the delivery of volatiles to terrestrial planets beyond the solar system. Key words: Kuiper belt: general – planetary syst ...
... Kuiper-Belt-Object analog into the white dwarf’s tidal radius. This finding shows that analogs to objects in our Kuiper Belt exist around other stars and could be responsible for the delivery of volatiles to terrestrial planets beyond the solar system. Key words: Kuiper belt: general – planetary syst ...
BCS311 Module 3
... metamorphic rock derived from granite. Rocks of the continental crust exhibit an average density of 2,700 kg/m3. Oceanic crust consists largely of the mafic igneous rocks basalt and gabbro. Rocks of the oceanic crust exhibit an average density of 3,000 kg/m3. The crust is much thicker beneath contin ...
... metamorphic rock derived from granite. Rocks of the continental crust exhibit an average density of 2,700 kg/m3. Oceanic crust consists largely of the mafic igneous rocks basalt and gabbro. Rocks of the oceanic crust exhibit an average density of 3,000 kg/m3. The crust is much thicker beneath contin ...
Mercury
... Heat from the early sun vaporized many of the rocky materials when Mercury was forming. A giant impact stripped off the original crust and mantle. ...
... Heat from the early sun vaporized many of the rocky materials when Mercury was forming. A giant impact stripped off the original crust and mantle. ...
Late Heavy Bombardment
The Late Heavy Bombardment (abbreviated LHB and also known as the lunar cataclysm) is a hypothetical event thought to have occurred approximately 4.1 to 3.8 billion years (Ga) ago, corresponding to the Neohadean and Eoarchean eras on Earth. During this interval, a disproportionately large number of asteroids apparently collided with the early terrestrial planets in the inner Solar System, including Mercury, Venus, Earth, and Mars. The LHB happened after the Earth and other rocky planets had formed and accreted most of their mass, but still quite early in Earth's history.Evidence for the LHB derives from lunar samples brought back by the Apollo astronauts. Isotopic dating of Moon rocks implies that most impact melts occurred in a rather narrow interval of time. Several hypotheses are now offered to explain the apparent spike in the flux of impactors (i.e. asteroids and comets) in the inner Solar System, but no consensus yet exists. The Nice model is popular among planetary scientists; it postulates that the gas giant planets underwent orbital migration and scattered objects in the asteroid and/or Kuiper belts into eccentric orbits, and thereby into the path of the terrestrial planets. Other researchers argue that the lunar sample data do not require a cataclysmic cratering event near 3.9 Ga, and that the apparent clustering of impact melt ages near this time is an artifact of sampling materials retrieved from a single large impact basin. They also note that the rate of impact cratering could be significantly different between the outer and inner zones of the Solar System.