Facts Concerning the Solar System
... After a few hundred passages near the Sun, icy material is lost, leaving a dead comet which can be mistaken for an asteroid Shoemaker-Levy 9 before Jupiter impact ...
... After a few hundred passages near the Sun, icy material is lost, leaving a dead comet which can be mistaken for an asteroid Shoemaker-Levy 9 before Jupiter impact ...
Solar System Solar System
... • Other dwarf planets orbit mainly beyond Neptune in a region of space known as the Kuiper Belt. • The dwarf planets beyond Neptune are known as plutoids, in honor of Pluto. • They share this region with many smaller, icy, comet like bodies. • The first Kuiper Belt objects to be called dwarf planets ...
... • Other dwarf planets orbit mainly beyond Neptune in a region of space known as the Kuiper Belt. • The dwarf planets beyond Neptune are known as plutoids, in honor of Pluto. • They share this region with many smaller, icy, comet like bodies. • The first Kuiper Belt objects to be called dwarf planets ...
comets, asteroids
... 21. Why do comet tails always point away from the Sun? 22. The tails are blown outward from the Sun by the Solar Wind. Because a comet’s tail is not caused by the comet’s tail is not caused by the comet’s motion, it can even travel in front of the comet. So can you look at a picture of a comet and ...
... 21. Why do comet tails always point away from the Sun? 22. The tails are blown outward from the Sun by the Solar Wind. Because a comet’s tail is not caused by the comet’s tail is not caused by the comet’s motion, it can even travel in front of the comet. So can you look at a picture of a comet and ...
rtf
... number by the number of Oort cloud analogues in the Galaxy. Direct detection of such clouds is not yet possible (Jura 2005), although their existence has been inferred by indirect arguments for several star systems (e.g. Beichman et al. 2005, Grady et al. 1997, Melnick et al. 2001). Indeed our curre ...
... number by the number of Oort cloud analogues in the Galaxy. Direct detection of such clouds is not yet possible (Jura 2005), although their existence has been inferred by indirect arguments for several star systems (e.g. Beichman et al. 2005, Grady et al. 1997, Melnick et al. 2001). Indeed our curre ...
CML_DPS_PressBriefing_10Oct2006
... history. & HD100546 (an infant giant star + forming solar system) - We find similar emission signatures due to silicates, carbonates, phyllosilicates, water ice, amorphous carbon, and sulfides in the two ISO-observed systems, Hale-Bopp and HD100546, but there are significant differences as well. - T ...
... history. & HD100546 (an infant giant star + forming solar system) - We find similar emission signatures due to silicates, carbonates, phyllosilicates, water ice, amorphous carbon, and sulfides in the two ISO-observed systems, Hale-Bopp and HD100546, but there are significant differences as well. - T ...
Full text - FNWI (Science) Education Service Centre
... not all of the planet-crossing comets were ejected. Some comets did not gain enough energy to be lost to the ISM but instead were perturbed onto orbits with very large semi-major axes. Their perihelion distances however, remained within the planetary orbits. This means that, although the comet will ...
... not all of the planet-crossing comets were ejected. Some comets did not gain enough energy to be lost to the ISM but instead were perturbed onto orbits with very large semi-major axes. Their perihelion distances however, remained within the planetary orbits. This means that, although the comet will ...
Ch08_lecture_updated
... The Solar Nebula Hypothesis • Derived from 18th century ideas of Laplace and Kant • Proposes that Solar System evolved from a rotating, flattened disk of gas and dust (an interstellar cloud), the outer part of the disk becoming the planets and the inner part becoming the Sun ...
... The Solar Nebula Hypothesis • Derived from 18th century ideas of Laplace and Kant • Proposes that Solar System evolved from a rotating, flattened disk of gas and dust (an interstellar cloud), the outer part of the disk becoming the planets and the inner part becoming the Sun ...
Theme 10.1 -- Leftovers: Comets
... 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 thousands of years they wer ...
... 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 thousands of years they wer ...
Document
... contiguous parcels of interstellar gas moving as rigid bodies with homogeneous kinematical and physical properties then several of these clouds are needed to account for the velocities measured around the sun. ...
... contiguous parcels of interstellar gas moving as rigid bodies with homogeneous kinematical and physical properties then several of these clouds are needed to account for the velocities measured around the sun. ...
The Origin of Comets and the Oort Cloud
... meant that comets became definitely established as celestial objects; but are they solar system or interstellar in origin? ...
... meant that comets became definitely established as celestial objects; but are they solar system or interstellar in origin? ...
The Minor Bodies of the Solar System
... long, many of them being several hundred and possibly up to a million years. These long-period comets have highly inclined orbits and roughly half of them revolve about the Sun in direct orbits, like the planets and asteroids, while the other half display retrograde orbits. Because of uncertainties ...
... long, many of them being several hundred and possibly up to a million years. These long-period comets have highly inclined orbits and roughly half of them revolve about the Sun in direct orbits, like the planets and asteroids, while the other half display retrograde orbits. Because of uncertainties ...
Looking for life in unlikely places: reasons why planets may not be
... telescope. At that distance, we could identify an Oort Cloud object covered with sunflowers if its diameter were as large as 400 km. This diameter is much smaller than Pluto and comparable with other Kuiper Belt objects that have been discovered over the last few years. The prospects for pit-lamping ...
... telescope. At that distance, we could identify an Oort Cloud object covered with sunflowers if its diameter were as large as 400 km. This diameter is much smaller than Pluto and comparable with other Kuiper Belt objects that have been discovered over the last few years. The prospects for pit-lamping ...
Busemann_final - University of Hertfordshire
... surprising differences between the comets, which are all short-period comets with orbits constrained by Jupiter’s gravitational field. Comet 81P/Wild 2 was found to have incorporated much higher levels of material formed in the inner Solar System, however all the comets contained materials such as c ...
... surprising differences between the comets, which are all short-period comets with orbits constrained by Jupiter’s gravitational field. Comet 81P/Wild 2 was found to have incorporated much higher levels of material formed in the inner Solar System, however all the comets contained materials such as c ...
The Solar System - Henry County Schools
... S6E1c. Compare and contrast planets in terms of: size relative to earth; surface and atmospheric features; relative distance from the sun; ability to support life S6E1e. Explain that gravity is the force that governs the motion of the solar system ...
... S6E1c. Compare and contrast planets in terms of: size relative to earth; surface and atmospheric features; relative distance from the sun; ability to support life S6E1e. Explain that gravity is the force that governs the motion of the solar system ...
Testing
... and jovian. • Planets orbit in the same direction and plane. • Asteroids and comets exist. • There are four terrestrial and four jovian planets. ...
... and jovian. • Planets orbit in the same direction and plane. • Asteroids and comets exist. • There are four terrestrial and four jovian planets. ...
ppt
... The Solar Nebula theory is the leading explanation for the formation of the solar system Explains all the key features of the solar system, and particularly why gas giants orbit farther out than terrestrial planets The few pieces of data that do not at first appearances match the theory can be int ...
... The Solar Nebula theory is the leading explanation for the formation of the solar system Explains all the key features of the solar system, and particularly why gas giants orbit farther out than terrestrial planets The few pieces of data that do not at first appearances match the theory can be int ...
Presentation
... – Several billion comets – Cometary orbits are more often near the ecliptic, but may be prograde or retrograde. ...
... – Several billion comets – Cometary orbits are more often near the ecliptic, but may be prograde or retrograde. ...
Molecular cloud - University of Western Ontario
... • Outer regions of low density have high Alfvén speed leads to large amplitude motions and generation of long wavelength modes in outer cloud. • Z1/2 and VA relations naturally satisfied by time-averaged quantities. Highly super-Alfvénic motions not possible. • Power spectrum contains most ...
... • Outer regions of low density have high Alfvén speed leads to large amplitude motions and generation of long wavelength modes in outer cloud. • Z1/2 and VA relations naturally satisfied by time-averaged quantities. Highly super-Alfvénic motions not possible. • Power spectrum contains most ...
![PHESCh23[1]](http://s1.studyres.com/store/data/002548401_1-54f64fe1fe267bb48433688f1bc47b44-300x300.png)
PHESCh23[1]
... The most prominent feature of Saturn is its system of rings. Features of Saturn • Saturn’s atmosphere is very active, with winds roaring at up to 1500 kilometers per hour. • Large cyclonic “storms” similar to Jupiter’s Great Red Spot, although smaller, occur in Saturn’s ...
... The most prominent feature of Saturn is its system of rings. Features of Saturn • Saturn’s atmosphere is very active, with winds roaring at up to 1500 kilometers per hour. • Large cyclonic “storms” similar to Jupiter’s Great Red Spot, although smaller, occur in Saturn’s ...
The Kuiper Belt
... On February 17, 2004, astronomers at the California Institute of Technology and (Caltech) Yale University announced that they may have found the largest Edgeworth-Kuiper Belt object, designated 2004 DW, since the discovery of Pluto on February 18, 1930. Based on its current distance of around 48 AUs ...
... On February 17, 2004, astronomers at the California Institute of Technology and (Caltech) Yale University announced that they may have found the largest Edgeworth-Kuiper Belt object, designated 2004 DW, since the discovery of Pluto on February 18, 1930. Based on its current distance of around 48 AUs ...
Star Formation
... Cloud fragmentation • The molecular cloud does not collapse into a single star. • It fragments into many clumps. • These clumps can further collapse to form stars. • 10 - 1000 stars can be formed from the cloud. ...
... Cloud fragmentation • The molecular cloud does not collapse into a single star. • It fragments into many clumps. • These clumps can further collapse to form stars. • 10 - 1000 stars can be formed from the cloud. ...
Chapter15_New
... meteoroid — A solid interplanetary particle passing through the Earth’s atmosphere. micrometeorite — A meteoritic particle less than 50 millionths of a meter in diameter. Micrometeorites are slowed by atmospheric gas before they can be vaporized, so they drift slowly to the ground. minor planet — An ...
... meteoroid — A solid interplanetary particle passing through the Earth’s atmosphere. micrometeorite — A meteoritic particle less than 50 millionths of a meter in diameter. Micrometeorites are slowed by atmospheric gas before they can be vaporized, so they drift slowly to the ground. minor planet — An ...
NAME: CLASS: 1 Solar System Formation: PowerPoint Notes Sheet
... Why are the inner planets made up of metallic elements and the outer planets are gaseous? Inner planets are hotter and closer to the Sun (origin) and outer planets are cooler and farther away Slide 15: Why might Jupiter and Saturn be made up of H and He and the other gas giants are made up of additi ...
... Why are the inner planets made up of metallic elements and the outer planets are gaseous? Inner planets are hotter and closer to the Sun (origin) and outer planets are cooler and farther away Slide 15: Why might Jupiter and Saturn be made up of H and He and the other gas giants are made up of additi ...
Formation of the Solar System
... growing body to become more and more circular, and less elliptical. Similarly, particles which are traveling north are as common as those going south. As these particles collide, their velocities average out, causing the cloud to flatten into a disk. The cloud continues to collapse because of gravit ...
... growing body to become more and more circular, and less elliptical. Similarly, particles which are traveling north are as common as those going south. As these particles collide, their velocities average out, causing the cloud to flatten into a disk. The cloud continues to collapse because of gravit ...
The Magnitude Scale
... visible from "dark" rural areas located some 140 miles (200 km) from major cities and some 30 miles (50 km) from nearest town of population 5000 or so ...
... visible from "dark" rural areas located some 140 miles (200 km) from major cities and some 30 miles (50 km) from nearest town of population 5000 or so ...
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.