what is a comet? - Fireballs in the sky
... Eccentric orbit: A non-circular (oval shaped) orbit around a larger body (the Sun for example). The nature of the orbit means that the comet accelerates as it flies close to the sun, and decelerates as it flies away and so only spends a brief amount of time in the inner solar system. Most comets hav ...
... Eccentric orbit: A non-circular (oval shaped) orbit around a larger body (the Sun for example). The nature of the orbit means that the comet accelerates as it flies close to the sun, and decelerates as it flies away and so only spends a brief amount of time in the inner solar system. Most comets hav ...
The Solar System and its Place in the Galaxy
... The Sun's velocity relative to the LSR is low as compared with other G-type stars, which have typical velocities of 40-45 km sec-1 relative to the LSR. Stars are accelerated by encounters with giant molecular clouds in the galactic disk. Thus, older stars can be accelerated to higher mean velocitie ...
... The Sun's velocity relative to the LSR is low as compared with other G-type stars, which have typical velocities of 40-45 km sec-1 relative to the LSR. Stars are accelerated by encounters with giant molecular clouds in the galactic disk. Thus, older stars can be accelerated to higher mean velocitie ...
meteor shower
... • The Perseids are so-called because the point they appear to come from, called the radiant, lies in the constellation Perseus, • The stream of debris is called the Perseid cloud and stretches along the orbit of the comet Swift-Tuttle. The cloud consists of particles ejected by the comet as it trave ...
... • The Perseids are so-called because the point they appear to come from, called the radiant, lies in the constellation Perseus, • The stream of debris is called the Perseid cloud and stretches along the orbit of the comet Swift-Tuttle. The cloud consists of particles ejected by the comet as it trave ...
The Planets - Plain Local Schools
... 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 ...
Outline - March 16, 2010 Interstellar Medium (ISM) Why should you
... Likely scenario is that many lumps (which are more dense than the average) contract to form stars at about the same time ...
... Likely scenario is that many lumps (which are more dense than the average) contract to form stars at about the same time ...
Document
... Of these 184 are periodic comets (orbital periods less than 200 years); some of the remainder are no doubt periodic as well, but their orbits have not been determined with sufficient accuracy to tell for sure. ...
... Of these 184 are periodic comets (orbital periods less than 200 years); some of the remainder are no doubt periodic as well, but their orbits have not been determined with sufficient accuracy to tell for sure. ...
Chapter 23 Review
... 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 ...
Touring_Our_Solar_System_PowerPoint
... 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 ...
ES Lesson Plans
... 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 Planets - OrgSites.com
... 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 ...
Volcanoes and Igneous Activity Earth
... 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 ...
Asteroids, Comets, and Pluto: The Small Pieces
... that asteroids came from a planet that got too close to a bigger planet. The gravity from the larger planet pulled apart the smaller object. The third theory suggests that asteroids were starting to form into the shape of a planet, but Jupiter interfered with accretion. Accretion is the process thro ...
... that asteroids came from a planet that got too close to a bigger planet. The gravity from the larger planet pulled apart the smaller object. The third theory suggests that asteroids were starting to form into the shape of a planet, but Jupiter interfered with accretion. Accretion is the process thro ...
Search for Life in the Universe
... Stabilizes the Earth’s tilt at 2025, moderating the seasons How rare is a moon due to impact?: cf., Charon, Pluto’s moon Other ways to stabilize seasons: e.g., winds Can life migrate? ...
... Stabilizes the Earth’s tilt at 2025, moderating the seasons How rare is a moon due to impact?: cf., Charon, Pluto’s moon Other ways to stabilize seasons: e.g., winds Can life migrate? ...
Excellence
... over time. They range in temperature from 7, 500 – 30, 000 K. This is quite hot compared to the red giants which are still burning fuel but it makes sense when you compare their surface area and mass. White dwarfs have an extremely dense inner core, which means they have a small surface area but a l ...
... over time. They range in temperature from 7, 500 – 30, 000 K. This is quite hot compared to the red giants which are still burning fuel but it makes sense when you compare their surface area and mass. White dwarfs have an extremely dense inner core, which means they have a small surface area but a l ...
The Oort cloud as a remnant of the protosolar nebula
... 4. On the initial assumptions and numerical integration Assuming the creation of cometary nuclei in molecular clouds, it seems to be reasonable to suppose that their number density in an element of volume is roughly linearly proportional to the density of cloud material in this volume. The mathemati ...
... 4. On the initial assumptions and numerical integration Assuming the creation of cometary nuclei in molecular clouds, it seems to be reasonable to suppose that their number density in an element of volume is roughly linearly proportional to the density of cloud material in this volume. The mathemati ...
Lesson 3 The Solar System - Delaware Valley School District
... • Most asteroids are located in the asteroid belt. • The largest object is about one fourth the diameter of the Moon. • Asteroids orbit the Sun just like planets. • Some asteroids travel as far from the Sun as Saturn’s orbit, other asteroids have orbits that cross Earth’s path. ...
... • Most asteroids are located in the asteroid belt. • The largest object is about one fourth the diameter of the Moon. • Asteroids orbit the Sun just like planets. • Some asteroids travel as far from the Sun as Saturn’s orbit, other asteroids have orbits that cross Earth’s path. ...
Lesson 3 The Solar System
... • Beyond the asteroid belt is another group of planets that includes Jupiter, Saturn, Uranus, and Neptune, known as the outer planets. • They are gas giants which are huge planets with a small, metallic core, and a thick atmosphere. • The gas giants all have rings and many moons. • They spin very ra ...
... • Beyond the asteroid belt is another group of planets that includes Jupiter, Saturn, Uranus, and Neptune, known as the outer planets. • They are gas giants which are huge planets with a small, metallic core, and a thick atmosphere. • The gas giants all have rings and many moons. • They spin very ra ...
Asteroid Belt
... became parts of larger bodies. Therefore, most of the asteroid belt consists of relatively small objects compared to the planets, although some large asteroids almost the size of dwarf planets do exist. The current asteroid belt is believed to contain only a small fraction of the mass of the primord ...
... became parts of larger bodies. Therefore, most of the asteroid belt consists of relatively small objects compared to the planets, although some large asteroids almost the size of dwarf planets do exist. The current asteroid belt is believed to contain only a small fraction of the mass of the primord ...
File - We All Love Science
... • Our Solar System is: – Flat, with planets orbiting in same direction – 2 types of bodies: rocky inner planets close to the Sun, gaseous outer bodies further away – Outer planets similar in composition to the Sun; inner planets are like the Sun minus gases that ...
... • Our Solar System is: – Flat, with planets orbiting in same direction – 2 types of bodies: rocky inner planets close to the Sun, gaseous outer bodies further away – Outer planets similar in composition to the Sun; inner planets are like the Sun minus gases that ...
4. Star formation 4.1 Jeans` criterion
... • Stars form in molecular clouds. • Dimensions ~ 10pc, density ~ 5x109 m-3, temperature ~ 10 K. • Galactic magnetic field strongly tied to ionized plasma in ISM. • Field lines run parallel to galactic plane. • Local perturbations –> potential wells –> condensations. AS 3003 ...
... • Stars form in molecular clouds. • Dimensions ~ 10pc, density ~ 5x109 m-3, temperature ~ 10 K. • Galactic magnetic field strongly tied to ionized plasma in ISM. • Field lines run parallel to galactic plane. • Local perturbations –> potential wells –> condensations. AS 3003 ...
Chapter 19.3 Student Study Guide
... how the Earth’s moons formed. • While Earth was still in its molten stage, it was struck by a Mars-sized body. A large part of Earth’s mantle was blasted into space and along with debris from the impacting body formed the moon. ...
... how the Earth’s moons formed. • While Earth was still in its molten stage, it was struck by a Mars-sized body. A large part of Earth’s mantle was blasted into space and along with debris from the impacting body formed the moon. ...
Chapter 6 - Formation of the Solar System
... 3. Existence of smaller bodies • Rocky/metal asteroids and icy comets ...
... 3. Existence of smaller bodies • Rocky/metal asteroids and icy comets ...
Chapters 8 & 12
... discovered Eris, an iceball even larger than Pluto. • Eris even has a moon: Dysnomia. ...
... discovered Eris, an iceball even larger than Pluto. • Eris even has a moon: Dysnomia. ...
Interplanetary Vagabonds
... The Oort cloud is a spherical distribution of icy bodies orbiting the Sun, which extends from about 10,000 AU to about 100,000 AU 100,000 AU is about 9.3 trillion miles (or 1.6 ly), which is almost 40% of the way to the nearest star, Proxima Centauri The periods of most comets from the Oort cloud ma ...
... The Oort cloud is a spherical distribution of icy bodies orbiting the Sun, which extends from about 10,000 AU to about 100,000 AU 100,000 AU is about 9.3 trillion miles (or 1.6 ly), which is almost 40% of the way to the nearest star, Proxima Centauri The periods of most comets from the Oort cloud ma ...
1-1 Origin of the Earth Motion NOTES blanks
... The ____________________ planets are the inner four planets of Mercury, Venus, Earth, and Mars that are close to the size of Earth and have solid, rocky surfaces. The _________________ planets are the outer planets of Jupiter, Saturn, Uranus, and Neptune which are much larger, more gaseous, and lack ...
... The ____________________ planets are the inner four planets of Mercury, Venus, Earth, and Mars that are close to the size of Earth and have solid, rocky surfaces. The _________________ planets are the outer planets of Jupiter, Saturn, Uranus, and Neptune which are much larger, more gaseous, and lack ...
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.