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asteroid-comet-meteor presentation
... The second and third characters "W7" are a shorthand way of counting the number of asteroids found during the 2nd half of August 2000. The first asteroid discovered was "2000 QA"; the second was "2000 QB;" The second letter cycles through the alphabet until it reaches "Z" and then it goes back to th ...
... The second and third characters "W7" are a shorthand way of counting the number of asteroids found during the 2nd half of August 2000. The first asteroid discovered was "2000 QA"; the second was "2000 QB;" The second letter cycles through the alphabet until it reaches "Z" and then it goes back to th ...
Comets - Cloudfront.net
... When they 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 Hydrogen cloud: huge (millions of km in diameter) but v ...
... When they 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 Hydrogen cloud: huge (millions of km in diameter) but v ...
Kuiper Belt Objects - Stony Brook Astronomy
... • Long Period Comets – Random Inclinations (Oort Cloud) • Short Period Comets – Low Inclinations (Kuiper Belt) ...
... • Long Period Comets – Random Inclinations (Oort Cloud) • Short Period Comets – Low Inclinations (Kuiper Belt) ...
Comets
... The Origin of Comets Comets are believed to originate in the Oort cloud: Spherical cloud of several trillion icy bodies, ~ 10,000 – 100,000 AU from the sun. Gravitational influence of occasional passing stars may perturb some orbits and draw them towards the inner solar ...
... The Origin of Comets Comets are believed to originate in the Oort cloud: Spherical cloud of several trillion icy bodies, ~ 10,000 – 100,000 AU from the sun. Gravitational influence of occasional passing stars may perturb some orbits and draw them towards the inner solar ...
Meteors and Comets
... Meteor Crater is almost 600 feet deep and was made by a giant meteorite weighing more than 500 tons (or one million pounds)! Other bright objects which can be seen traveling through space are comets. A comet is a ball of dust, ice, and gases that travels in an orbit around the sun. As it speeds a ...
... Meteor Crater is almost 600 feet deep and was made by a giant meteorite weighing more than 500 tons (or one million pounds)! Other bright objects which can be seen traveling through space are comets. A comet is a ball of dust, ice, and gases that travels in an orbit around the sun. As it speeds a ...
File - We All Love Science
... Of what are comets made? • How can we tell the composition of a comet? – Fluorescence: wavelength of reflected light • From dust from comets ...
... Of what are comets made? • How can we tell the composition of a comet? – Fluorescence: wavelength of reflected light • From dust from comets ...
COMETS - Mount Holyoke College
... orbit, where they can be detected as a meteor shower if the Earth intersects the comet's orbit. 6. Ion tail: 107 - 108 km The ion tail, or plasma tail, is composed of molecular ions and electrons. Because these atomic particles are charged, they move under the influence of the magnetic field carried ...
... orbit, where they can be detected as a meteor shower if the Earth intersects the comet's orbit. 6. Ion tail: 107 - 108 km The ion tail, or plasma tail, is composed of molecular ions and electrons. Because these atomic particles are charged, they move under the influence of the magnetic field carried ...
Chapter 17 – Asteroids and Comets
... 16 organic molecules, some not seen before on comets, found on P67 by Philae – e.g. chains of formaldehyde (CH2O) gas. Building blocks of amino acids, which make up proteins. More complex ones found such as acetamide: CH₃CONH₂. • Surface penetrating radar shows porosity is high: 75-85%, confirming p ...
... 16 organic molecules, some not seen before on comets, found on P67 by Philae – e.g. chains of formaldehyde (CH2O) gas. Building blocks of amino acids, which make up proteins. More complex ones found such as acetamide: CH₃CONH₂. • Surface penetrating radar shows porosity is high: 75-85%, confirming p ...
Comets and asteroids
... Mostly found in the broad space between Mars and Jupiter Too small to be seen without a telescope First of them discovered at the beginning of 19 th century First discovered asteroid - Ceres - at 2.8 AU from Sun - 1801 - Giovanni Piazzi By 1890 - about 300 asteroids discovered Now - more ...
... Mostly found in the broad space between Mars and Jupiter Too small to be seen without a telescope First of them discovered at the beginning of 19 th century First discovered asteroid - Ceres - at 2.8 AU from Sun - 1801 - Giovanni Piazzi By 1890 - about 300 asteroids discovered Now - more ...
comets, meteors, and asteroids quiz
... What is the asteroid belt? A ring of asteroids orbiting the Sun A ring of asteroids orbiting Earth An area in space where comets come from ...
... What is the asteroid belt? A ring of asteroids orbiting the Sun A ring of asteroids orbiting Earth An area in space where comets come from ...
Whence Comets?
... July 2005, and Stardust returned to the Kuiper belt in the classical picture); Halley is the prototype of the Only one circumstellar grain was Earth the grains that it had collected Halley-class comets (originally from Oort cloud); Hyakutake is a comet found, showing that material is from comet Wild ...
... July 2005, and Stardust returned to the Kuiper belt in the classical picture); Halley is the prototype of the Only one circumstellar grain was Earth the grains that it had collected Halley-class comets (originally from Oort cloud); Hyakutake is a comet found, showing that material is from comet Wild ...
Comets
... Astronomers Alan Hale and Thomas Bopp separately discovered Comet Hale-Bopp on July 23, 1995. Both astronomers were observing the globular cluster M70 when they noticed the mysterious new object, the most recent great comet to pass close to Earth. When Comet Hale-Bopp was discovered, it was still 7. ...
... Astronomers Alan Hale and Thomas Bopp separately discovered Comet Hale-Bopp on July 23, 1995. Both astronomers were observing the globular cluster M70 when they noticed the mysterious new object, the most recent great comet to pass close to Earth. When Comet Hale-Bopp was discovered, it was still 7. ...
Asteroids and Comets
... Caption: drawing of a comet Rocks fly through space all the time. Some of these rocks are asteroids; some are comets. What's the difference? Asteroids are made up of rock and iron. They are similar to the rocky planets closest to the sun. Some asteroids are so large that scientists call them minor p ...
... Caption: drawing of a comet Rocks fly through space all the time. Some of these rocks are asteroids; some are comets. What's the difference? Asteroids are made up of rock and iron. They are similar to the rocky planets closest to the sun. Some asteroids are so large that scientists call them minor p ...
Asteroids and Comets By Patti Hutchison 1 Caption: drawing of a
... Most comets come from a distant ring of space garbage called the Oort Cloud. Like asteroids, comets also orbit the sun. Most of their orbits are farther away than Pluto. It can take some comets millions of years to make one orbit. Some, however, are close enough to see from Earth. When Earth passes ...
... Most comets come from a distant ring of space garbage called the Oort Cloud. Like asteroids, comets also orbit the sun. Most of their orbits are farther away than Pluto. It can take some comets millions of years to make one orbit. Some, however, are close enough to see from Earth. When Earth passes ...
WHAT ELSE IS OUT THERE BESIDES THE PLANETS
... small to be called an asteroid or a comet. Most meteoroids are made of stone, nickel, and iron. As meteoroids come close to Earth, they can be pulled into Earth’s atmosphere by Earth’s gravity. Once they are in Earth’s atmosphere, the friction between the rock and the air molecules cause the rock to ...
... small to be called an asteroid or a comet. Most meteoroids are made of stone, nickel, and iron. As meteoroids come close to Earth, they can be pulled into Earth’s atmosphere by Earth’s gravity. Once they are in Earth’s atmosphere, the friction between the rock and the air molecules cause the rock to ...
Word Document - The Book of Phyz
... 1. To nearly all cultures, comets were portents of ____________________. 2. “Disaster” derives from the Greek for “bad _____________________”. 3. Various African cultures interpreted comets to foretell A. famine B. war C. flood E. smallpox F. death of a leader G. wildfire ...
... 1. To nearly all cultures, comets were portents of ____________________. 2. “Disaster” derives from the Greek for “bad _____________________”. 3. Various African cultures interpreted comets to foretell A. famine B. war C. flood E. smallpox F. death of a leader G. wildfire ...
Brown spots mark impact sites of Comet Shoemaker–Levy on
... Comet nuclei are known to range from about 100 meters to more than 40 kilometres across. They are composed of rock, dust, water ice, and frozen gases such as carbon monoxide, carbon dioxide, methane and ammonia.[11] Because of their low mass, comet nuclei do not become spherical under their own grav ...
... Comet nuclei are known to range from about 100 meters to more than 40 kilometres across. They are composed of rock, dust, water ice, and frozen gases such as carbon monoxide, carbon dioxide, methane and ammonia.[11] Because of their low mass, comet nuclei do not become spherical under their own grav ...
Chapter 2 - The Solar System
... nucleus by escaping gases; this is the most prominent part of a comet to the unaided eye; ion tail: very long bluish tail composed of ionized gas caused by interactions with the solar wind. It always points away from the Sun. ...
... nucleus by escaping gases; this is the most prominent part of a comet to the unaided eye; ion tail: very long bluish tail composed of ionized gas caused by interactions with the solar wind. It always points away from the Sun. ...
Review Sheet
... A meteor is a rocky body the has entered into the Earth’s atmosphere. It makes a quick streak in the sky, lasting for two or three seconds. If the meteor is large enough, it will survive its trip through the atmosphere. When it hits the ground, it is called a meteorite. ...
... A meteor is a rocky body the has entered into the Earth’s atmosphere. It makes a quick streak in the sky, lasting for two or three seconds. If the meteor is large enough, it will survive its trip through the atmosphere. When it hits the ground, it is called a meteorite. ...
Pluto and Comets
... – May orbit once every million years – Origin in Oort Cloud -spherical cloud up to 100,000 AU from Sun ...
... – May orbit once every million years – Origin in Oort Cloud -spherical cloud up to 100,000 AU from Sun ...
chapter19
... The Origin of Comets Comets are believed to originate in the Oort cloud: Spherical cloud of several trillion icy bodies, ~ 10,000 – 100,000 AU from the sun. Gravitational influence of occasional passing stars may perturb some orbits and draw them towards the inner solar ...
... The Origin of Comets Comets are believed to originate in the Oort cloud: Spherical cloud of several trillion icy bodies, ~ 10,000 – 100,000 AU from the sun. Gravitational influence of occasional passing stars may perturb some orbits and draw them towards the inner solar ...
File
... material that never formed into planets. ~ The Main Asteroid Belt is located between Mars and Jupiter. ~ More than 40,000 asteroids have been ...
... material that never formed into planets. ~ The Main Asteroid Belt is located between Mars and Jupiter. ~ More than 40,000 asteroids have been ...
Comet
![](https://en.wikipedia.org/wiki/Special:FilePath/Deep_Impact_HRI.jpeg?width=300)
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.