Slide 1
... When comets are near the Sun and active, comets have several distinct parts: nucleus: relatively solid and stable, mostly ice and gas with a small amount of dust and other solids coma: dense cloud of water, carbon dioxide and other neutral gases sublimed from the nucleus ...
... When comets are near the Sun and active, comets have several distinct parts: nucleus: relatively solid and stable, mostly ice and gas with a small amount of dust and other solids coma: dense cloud of water, carbon dioxide and other neutral gases sublimed from the nucleus ...
Theme 10.1 -- Leftovers: Comets
... Near the sun, comets form tails as we saw, and there are two points to consider about the tails of comets. Let's compare them to animal tails. As you know, when animals move, their tails are behind them. Here we see tadpoles moving to the upper left with their tails wiggling behind them. A comet, on ...
... Near the sun, comets form tails as we saw, and there are two points to consider about the tails of comets. Let's compare them to animal tails. As you know, when animals move, their tails are behind them. Here we see tadpoles moving to the upper left with their tails wiggling behind them. A comet, on ...
Chapter 9 Asteroids, Comets, and Dwarf Planets
... happened to form. 2. The belt is the remnant of a large terrestrial planet that used to be between Mars and Jupiter. 3. The belt is where all the asteroids happened to survive. ...
... happened to form. 2. The belt is the remnant of a large terrestrial planet that used to be between Mars and Jupiter. 3. The belt is where all the asteroids happened to survive. ...
comets, asteroids
... the Oort cloud after the man who discovered it Jan Oort. The Oort cloud is located 1000 times further away from the Sun than Neptune and Pluto. 27. What keeps the comet in orbit? 28. The Sun’s pulling power which is called gravity. It is the same force that keeps the Earth and other planets circling ...
... the Oort cloud after the man who discovered it Jan Oort. The Oort cloud is located 1000 times further away from the Sun than Neptune and Pluto. 27. What keeps the comet in orbit? 28. The Sun’s pulling power which is called gravity. It is the same force that keeps the Earth and other planets circling ...
4 Asteroids, Comets, and Meteoroids
... What Are Comets? A comet is a small body of ice, rock, and dust that follows a highly elliptical orbit around the sun. One of the most famous comets is Halley’s Comet, which passes by Earth every 76 years. It last passed Earth in 1986. Another comet, Hale-Bopp, is visible from Earth every 5 to 10 ye ...
... What Are Comets? A comet is a small body of ice, rock, and dust that follows a highly elliptical orbit around the sun. One of the most famous comets is Halley’s Comet, which passes by Earth every 76 years. It last passed Earth in 1986. Another comet, Hale-Bopp, is visible from Earth every 5 to 10 ye ...
Chapter 12 Remnants of Rock and Ice What are asteroids like
... • Coma is atmosphere that comes from heated nucleus • Plasma tail is gas escaping from coma, pushed by solar wind • Dust tail is pushed by photons ...
... • Coma is atmosphere that comes from heated nucleus • Plasma tail is gas escaping from coma, pushed by solar wind • Dust tail is pushed by photons ...
Trading Cards
... less than 200 years) are found in the Kuiper Belt It begins beyond the orbit of Neptune, from about 2,790,000,000 miles to 5,115,000,000 miles. When Comet Halley is at its farthest distance from the Sun, it is 3.3 billion miles away. Long-period comets (comets with orbits longer than 200 years) ar ...
... less than 200 years) are found in the Kuiper Belt It begins beyond the orbit of Neptune, from about 2,790,000,000 miles to 5,115,000,000 miles. When Comet Halley is at its farthest distance from the Sun, it is 3.3 billion miles away. Long-period comets (comets with orbits longer than 200 years) ar ...
Presentation
... – Water ice, frozen CO2, N2, methane, ammonia, HCN, (CN)2 (cyanogen), amino acids, sugars all detected. – Embedded with rocks and dust – Extremely dark, tarry surface. ...
... – Water ice, frozen CO2, N2, methane, ammonia, HCN, (CN)2 (cyanogen), amino acids, sugars all detected. – Embedded with rocks and dust – Extremely dark, tarry surface. ...
Exploring Comets
... condensed into icy objects. Both regions extend beyond the orbits of Neptune and Pluto but are still part of our solar system and much closer to us than the closest star. 4. Comet orbits are elliptical. It brings them close to the sun and takes them far away. 5. Short period comets orbit the Sun eve ...
... condensed into icy objects. Both regions extend beyond the orbits of Neptune and Pluto but are still part of our solar system and much closer to us than the closest star. 4. Comet orbits are elliptical. It brings them close to the sun and takes them far away. 5. Short period comets orbit the Sun eve ...
CML_DPS_PressBriefing_10Oct2006
... • We have a new tool from the Deep Impact experiment, that allows us to understand the makeup of comets and asteroids, and to understand where and when comets and asteroids formed and evolved. • We have now successfully applied the tool to the ‘gold standard’ of comet studies, Comet Hale-Bopp, and 2 ...
... • We have a new tool from the Deep Impact experiment, that allows us to understand the makeup of comets and asteroids, and to understand where and when comets and asteroids formed and evolved. • We have now successfully applied the tool to the ‘gold standard’ of comet studies, Comet Hale-Bopp, and 2 ...
THE COMPLETE COSMOS Chapter 10: Realm of the Comets
... Occasionally, during their passages through the outer Solar System, long-period comets may be "captured" into shorter orbits by giant planets like Saturn and Jupiter. Theories about the formation of the Oort Cloud are highly speculative. One idea is that Oort Cloud comets formed in the outer regions ...
... Occasionally, during their passages through the outer Solar System, long-period comets may be "captured" into shorter orbits by giant planets like Saturn and Jupiter. Theories about the formation of the Oort Cloud are highly speculative. One idea is that Oort Cloud comets formed in the outer regions ...
Chapter 8
... • Some comet orbits seem to come from a flatter, less remote region – the Kuiper belt, which extends from Neptune’s orbit out to some unknown distance – Comets in the Oort cloud are a frigid 3 K and only warm up enough to emit gas when they enter Solar System, especially as they pass Jupiter ...
... • Some comet orbits seem to come from a flatter, less remote region – the Kuiper belt, which extends from Neptune’s orbit out to some unknown distance – Comets in the Oort cloud are a frigid 3 K and only warm up enough to emit gas when they enter Solar System, especially as they pass Jupiter ...
Falling Stars
... sky that we can see when a small speck of dust burns up high in the air above us. Where do these specks of dust come from? Comets! Astronomers call these pieces of comet dust “meteoroids.” Meteoroids are usually smaller than a grain of sand. Some meteoroids are bigger, but most are tiny. Meteoroids ...
... sky that we can see when a small speck of dust burns up high in the air above us. Where do these specks of dust come from? Comets! Astronomers call these pieces of comet dust “meteoroids.” Meteoroids are usually smaller than a grain of sand. Some meteoroids are bigger, but most are tiny. Meteoroids ...
Perseid Meteor Shower - Fraser Heights Chess Club
... small pieces of the comet along the comet's path. • A meteor shower happens when Earth passes through the path of a comet and small fragments of comet debris burn in the earth’s atmosphere. • The meteor showers can be predicted and occur at the same time each year. ...
... small pieces of the comet along the comet's path. • A meteor shower happens when Earth passes through the path of a comet and small fragments of comet debris burn in the earth’s atmosphere. • The meteor showers can be predicted and occur at the same time each year. ...
Universe Now - Course Pages of Physics Department
... the calculated distances of their aphelia. ...
... the calculated distances of their aphelia. ...
Three basic types of asteroids
... deploy an impactor that will essentially be "run over" by the nucleus of comet Tempel 1 on, July 4. Before, during and after the demise of this 820-pound impactor, a "flyby" spacecraft will be watching the 4-mile wide comet nucleus from nearby, collecting pictures and data of the event. The impactor ...
... deploy an impactor that will essentially be "run over" by the nucleus of comet Tempel 1 on, July 4. Before, during and after the demise of this 820-pound impactor, a "flyby" spacecraft will be watching the 4-mile wide comet nucleus from nearby, collecting pictures and data of the event. The impactor ...
17 - Department of Physics and Astronomy
... particles ( 1 µ m), and the even smaller atoms and molecules. Radiation pressure: particles 1 μm or less in size strongly affected, and blown out of the Solar system. P-R drag: on longer timescales, cm sized particles spiral into the Sun. • These particles can be trapped in resonances, though, ...
... particles ( 1 µ m), and the even smaller atoms and molecules. Radiation pressure: particles 1 μm or less in size strongly affected, and blown out of the Solar system. P-R drag: on longer timescales, cm sized particles spiral into the Sun. • These particles can be trapped in resonances, though, ...
here
... • Comets are gravitationally bound to the Sun. The orbits can be highly elliptical (recall the orbits of the planets are nearly circular). The orbital planes of the comets can be highly inclined with respect to the Earth’s orbital plane (i.e. the ecliptic). The orbital periods range from a few ...
... • Comets are gravitationally bound to the Sun. The orbits can be highly elliptical (recall the orbits of the planets are nearly circular). The orbital planes of the comets can be highly inclined with respect to the Earth’s orbital plane (i.e. the ecliptic). The orbital periods range from a few ...
pdf format
... support the solar nebula hypothesis and are thought to be fragments of planetesimals • For this connection to be established, differentiation needed to occur in large asteroids • Fragmentation of these early large asteroids (planetesimals) through collisions created the stony and iron asteroids we s ...
... support the solar nebula hypothesis and are thought to be fragments of planetesimals • For this connection to be established, differentiation needed to occur in large asteroids • Fragmentation of these early large asteroids (planetesimals) through collisions created the stony and iron asteroids we s ...
Chapter 10
... – Originally orbiting among the giant planets as planetesimals, comets were tossed into the Oort cloud by those planets – The shape of the Oort cloud is determined from observations of comet orbits • Some comet orbits seem to come from a flatter, less remote region – the Kuiper belt, which extends f ...
... – Originally orbiting among the giant planets as planetesimals, comets were tossed into the Oort cloud by those planets – The shape of the Oort cloud is determined from observations of comet orbits • Some comet orbits seem to come from a flatter, less remote region – the Kuiper belt, which extends f ...
Chapter 10
... cloud by those planets – The shape of the Oort cloud is determined from observations of comet orbits • Some comet orbits seem to come from a flatter, less remote region – the Kuiper belt, which extends from Neptune’s orbit out to some unknown distance ...
... cloud by those planets – The shape of the Oort cloud is determined from observations of comet orbits • Some comet orbits seem to come from a flatter, less remote region – the Kuiper belt, which extends from Neptune’s orbit out to some unknown distance ...
Chapter 10 - Relativity Group
... • Radioactive material in chondrules allows dating back to when they first condensed from the solar nebula • Some chondrules contain ancient dust grains that have survived from before the Solar System’s birth! ...
... • Radioactive material in chondrules allows dating back to when they first condensed from the solar nebula • Some chondrules contain ancient dust grains that have survived from before the Solar System’s birth! ...
- IIT Kanpur
... Now the question arises that if comets were born some few million years ago, then where they were before that. This question was first answered by Dutch astronomer Jane Ourt in 1950.He proposed that there is an icy spherical object at a distance of 75 trillion Kilometers from the sun. This region, c ...
... Now the question arises that if comets were born some few million years ago, then where they were before that. This question was first answered by Dutch astronomer Jane Ourt in 1950.He proposed that there is an icy spherical object at a distance of 75 trillion Kilometers from the sun. This region, c ...
10 Comets, Dwarf Planets, Asteroids and Meteoroids
... Throughout history, comets have been considered as portents of doom, even until very recently: Appearances of comets C/1973 E1 (Kohoutek), 1P/Halley (1986), and C/1995 O1 (Hale-Bopp) caused great concern among the superstitious. 1P/Halley’s appearance in 1066 was supposedly a bad omen for King Haro ...
... Throughout history, comets have been considered as portents of doom, even until very recently: Appearances of comets C/1973 E1 (Kohoutek), 1P/Halley (1986), and C/1995 O1 (Hale-Bopp) caused great concern among the superstitious. 1P/Halley’s appearance in 1066 was supposedly a bad omen for King Haro ...
Comet
A comet is an icy small Solar System body that, when passing close to the Sun, heats up and begins to outgas, displaying a visible atmosphere or coma, and sometimes also a tail. These phenomena are due to the effects of solar radiation and the solar wind upon the nucleus of the comet. Comet nuclei range from a few hundred metres to tens of kilometres across and are composed of loose collections of ice, dust, and small rocky particles. The coma and tail are much larger and, if sufficiently bright, may be seen from the Earth without the aid of a telescope. Comets have been observed and recorded since ancient times by many cultures.Comets have a wide range of orbital periods, ranging from several years to potentially several millions of years. Short-period comets originate in the Kuiper belt or its associated scattered disc, which lie beyond the orbit of Neptune. Long-period comets are thought to originate in the Oort cloud, a spherical cloud of icy bodies extending from outside the Kuiper belt to halfway to the next nearest star. Long-period comets are directed towards the Sun from the Oort cloud by gravitational perturbations caused by passing stars and the galactic tide. Hyperbolic comets may pass once through the inner Solar System before being flung out to interstellar space.Comets are distinguished from asteroids by the presence of an extended, gravitationally unbound atmosphere surrounding their central nucleus. This atmosphere has parts termed the coma (the central part immediately surrounding the nucleus) and the tail (a typically linear section consisting of dust or gas blown out from the coma by the Sun's light pressure or outstreaming solar wind plasma). However, extinct comets that have passed close to the Sun many times have lost nearly all of their volatile ices and dust and may come to resemble small asteroids. Asteroids are thought to have a different origin from comets, having formed inside the orbit of Jupiter rather than in the outer Solar System. The discovery of main-belt comets and active centaurs has blurred the distinction between asteroids and comets.As of November 2014 there are 5,253 known comets, a number that is steadily increasing. However, this represents only a tiny fraction of the total potential comet population, as the reservoir of comet-like bodies in the outer Solar System (in the Oort cloud) is estimated to be one trillion. Roughly one comet per year is visible to the naked eye, though many of these are faint and unspectacular. Particularly bright examples are called ""Great Comets"". Comets have been visited by unmanned probes such as the European Space Agency's Rosetta, which became the first ever to land a robotic spacecraft on a comet, and NASA's Deep Impact, which blasted a crater on Comet Tempel 1 to study its interior.