Comets
... • Meteorite = meteor that survives the plunge through the atmosphere to strike the ground ...
... • Meteorite = meteor that survives the plunge through the atmosphere to strike the ground ...
The Formation of the Solar System
... • A few meteorites have been identified as originating from the moon or Mars, having been blasted off by some impact on those bodies. • Meteoroids less than about 1 m across burn up in Earth’s atmosphere. • Larger meteoroids reach the surface, where they can cause significant damage. • Major collisi ...
... • A few meteorites have been identified as originating from the moon or Mars, having been blasted off by some impact on those bodies. • Meteoroids less than about 1 m across burn up in Earth’s atmosphere. • Larger meteoroids reach the surface, where they can cause significant damage. • Major collisi ...
Asteroids Comets Meteor Showers
... Two types of comets • Long-period comets (P>200 years) – Very elliptical orbits, random inclinations to ecliptic, equally likely to be prograde or retrograde – Many have periods of millions of years. Then orbit sizes are >104 AU. ...
... Two types of comets • Long-period comets (P>200 years) – Very elliptical orbits, random inclinations to ecliptic, equally likely to be prograde or retrograde – Many have periods of millions of years. Then orbit sizes are >104 AU. ...
Comets, Meteors, and Asteroids Oh My!! Terms
... • Asteroids orbit the sun like planets • Most asteroids are found in a belt between the orbit of Mars and Jupiter • The largest known asteroid is Ceres (940 km in diameter) • Most asteroids are less than 1 km in diameter ...
... • Asteroids orbit the sun like planets • Most asteroids are found in a belt between the orbit of Mars and Jupiter • The largest known asteroid is Ceres (940 km in diameter) • Most asteroids are less than 1 km in diameter ...
The Solar System (Planetary Debris) - NATSCI-A7
... • planetary debris made up of chunks of rocks and metals that orbit around the Sun. They are also called planetoids • planetary debris made up of chunks of rocks and metals that orbit around the Sun. They are also called planetoids • compose only a fraction of the Solar System ...
... • planetary debris made up of chunks of rocks and metals that orbit around the Sun. They are also called planetoids • planetary debris made up of chunks of rocks and metals that orbit around the Sun. They are also called planetoids • compose only a fraction of the Solar System ...
PowerPoint. - teachearthscience.org
... Fireball - fireballs are very bright meteors with some being as bright as the Moon or Sun. Meteorite - a body that has impacted on the Earth’s surface Fall - a meteorite that was observed to fall to the ground. Find - a meteorite that was not observed to fall but is recovered from the Earth’s surfac ...
... Fireball - fireballs are very bright meteors with some being as bright as the Moon or Sun. Meteorite - a body that has impacted on the Earth’s surface Fall - a meteorite that was observed to fall to the ground. Find - a meteorite that was not observed to fall but is recovered from the Earth’s surfac ...
Astronomy 2: Exploring the Solar System
... Meteoroid: Most meteors are caused by meteoroids, which are sand- to boulder-sized particles of debris that enter Earth's atmosphere. Meteor: The visible path in the sky that a meteoroid makes when passing through Earth's atmosphere. Meteorite: A natural object originating in space that survives imp ...
... Meteoroid: Most meteors are caused by meteoroids, which are sand- to boulder-sized particles of debris that enter Earth's atmosphere. Meteor: The visible path in the sky that a meteoroid makes when passing through Earth's atmosphere. Meteorite: A natural object originating in space that survives imp ...
Chapter 8 Concept Review - Cambridge University Press
... » Asteroids are minor planets (Sec. 8.5). Most asteroids are in the asteroid belt between the orbits of Mars and Jupiter. They were prevented from forming a planet by Jupiter’s gravitational tugs. Asteroids range up to about 1,000 km across (Sec. 8.5a), but the vast majo ...
... » Asteroids are minor planets (Sec. 8.5). Most asteroids are in the asteroid belt between the orbits of Mars and Jupiter. They were prevented from forming a planet by Jupiter’s gravitational tugs. Asteroids range up to about 1,000 km across (Sec. 8.5a), but the vast majo ...
WHAT ELSE IS OUT THERE BESIDES THE PLANETS
... A meteoroid is an object that is revolving around the sun or any object in space that is too 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 ...
... A meteoroid is an object that is revolving around the sun or any object in space that is too 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 ...
Asteroids, Meteoroids and Comets
... the solar system falls into Earth's atmosphere • Caused by atmospheric friction ...
... the solar system falls into Earth's atmosphere • Caused by atmospheric friction ...
Lecture18 - UCSB Physics
... • C) Their visible outer atmospheres assume a spherical shape even though their surfaces are irregular • D) They solidified from spherical gas clouds in their early history and retained this shape ...
... • C) Their visible outer atmospheres assume a spherical shape even though their surfaces are irregular • D) They solidified from spherical gas clouds in their early history and retained this shape ...
Lecture18
... •C) Their visible outer atmospheres assume a spherical shape even though their surfaces are irregular •D) They solidified from spherical gas clouds in their early history and retained this shape ...
... •C) Their visible outer atmospheres assume a spherical shape even though their surfaces are irregular •D) They solidified from spherical gas clouds in their early history and retained this shape ...
File
... F. Physical properties of comets 1. ~ Mass of small asteroid- 3x faster 2. 30 tons/sec lost near Sun (Halley’s - 5000 orbits/40,000 yrs.) 3. Nuclei: 100 kg/m3 gas/dust/ice 4. Dust mixed w/ CH4, NH3, CO2 ...
... F. Physical properties of comets 1. ~ Mass of small asteroid- 3x faster 2. 30 tons/sec lost near Sun (Halley’s - 5000 orbits/40,000 yrs.) 3. Nuclei: 100 kg/m3 gas/dust/ice 4. Dust mixed w/ CH4, NH3, CO2 ...
Comets, Meteors, and Asteroids
... A comet is a “dirty snowball” about the size of an earth mountain. (dirt and ice) Comets’ orbits are usually very long, narrow ellipses. They produce tails of gas and dust when they approach the sun. Look like “shooting stars” but can move much slower. ...
... A comet is a “dirty snowball” about the size of an earth mountain. (dirt and ice) Comets’ orbits are usually very long, narrow ellipses. They produce tails of gas and dust when they approach the sun. Look like “shooting stars” but can move much slower. ...
Chapter 9 Asteroids, Comets, and Dwarf Planets
... 3. An ionized or charged gas, made when atoms lose one or more electrons 4. Another name for the solar wind ...
... 3. An ionized or charged gas, made when atoms lose one or more electrons 4. Another name for the solar wind ...
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 ...
Your 2nd midterm …
... of comets with much shorter periods Long-period comets originate in a spherical cloud of icy bodies extending from 10,000 to 100,000 AU away from the sun and called the Oort cloud Some short-period comets can come from the Oort cloud and have their orbits altered by Jupiter, but most of them are tho ...
... of comets with much shorter periods Long-period comets originate in a spherical cloud of icy bodies extending from 10,000 to 100,000 AU away from the sun and called the Oort cloud Some short-period comets can come from the Oort cloud and have their orbits altered by Jupiter, but most of them are tho ...
File
... Minor Members of the Solar System Today you will learn: 1. What other objects, besides the planets, orbit around the sun. ...
... Minor Members of the Solar System Today you will learn: 1. What other objects, besides the planets, orbit around the sun. ...
Integrative Studies 410 Our Place in the Universe
... orbits of planets are nearly circular orbits of planets lie mostly in a single plane directions of revolution of planets about Sun is the same, and is the same as the direction of the Sun's rotation directions of rotation of planets about their axes is also mostly in the same direction as the Sun's ...
... orbits of planets are nearly circular orbits of planets lie mostly in a single plane directions of revolution of planets about Sun is the same, and is the same as the direction of the Sun's rotation directions of rotation of planets about their axes is also mostly in the same direction as the Sun's ...
The Deep Impact flyby spacecraft (upper L)
... The High Resolution Instrument (HRI), designed and built by Ball Aerospace & Technologies Corp. (Boulder, CO) is the main scientific instrument on the flyby spacecraft. The HRI CCD camera will image the comet impact site with less than 2 m (6 ft) per pixel scale when the flyby spacecraft is 700 km ...
... The High Resolution Instrument (HRI), designed and built by Ball Aerospace & Technologies Corp. (Boulder, CO) is the main scientific instrument on the flyby spacecraft. The HRI CCD camera will image the comet impact site with less than 2 m (6 ft) per pixel scale when the flyby spacecraft is 700 km ...
Asteroids, meteorites, and comets
... The outer edge of our Solar System is not empty. There are many, many huge spheres of ice and rock out near Pluto's orbit. Astronomers call this huge group of planetoids "Kuiper Belt Objects", or "KBOs" for short. The Kuiper Belt is a bit like the asteroid belt, but much farther from the Sun. See ho ...
... The outer edge of our Solar System is not empty. There are many, many huge spheres of ice and rock out near Pluto's orbit. Astronomers call this huge group of planetoids "Kuiper Belt Objects", or "KBOs" for short. The Kuiper Belt is a bit like the asteroid belt, but much farther from the Sun. See ho ...
Day-39
... tails. Ion tail created by the solar wind interacting with ions of the nucleus. Dust tail created from ...
... tails. Ion tail created by the solar wind interacting with ions of the nucleus. Dust tail created from ...
Integrative Studies 410 Our Place in the Universe
... orbits of planets are nearly circular orbits of planets lie mostly in a single plane directions of revolution of planets about Sun is the same, and is the same as the direction of the Sun's rotation directions of rotation of planets about their axes is also mostly in the same direction as the Sun's ...
... orbits of planets are nearly circular orbits of planets lie mostly in a single plane directions of revolution of planets about Sun is the same, and is the same as the direction of the Sun's rotation directions of rotation of planets about their axes is also mostly in the same direction as the Sun's ...
The Structure of Comets - Oregon State University
... • Pluto is the only planet in the solar system that we have not visited. • Pluto and its largest moon Charon would fit comfortably within the United States. • Charon orbits Pluto at a steep angle to the ecliptic, and Pluto’s axis is heavily tipped as well. • Two new moons were discovered in 2005, an ...
... • Pluto is the only planet in the solar system that we have not visited. • Pluto and its largest moon Charon would fit comfortably within the United States. • Charon orbits Pluto at a steep angle to the ecliptic, and Pluto’s axis is heavily tipped as well. • Two new moons were discovered in 2005, an ...
Tunguska event
The Tunguska event was a large explosion that occurred near the Stony Tunguska River, in what is now Krasnoyarsk Krai, Russia, on the morning of June 30, 1908 (N.S.). The explosion over the sparsely populated Eastern Siberian Taiga flattened 2,000 km2 (770 sq mi) of forest and caused no known casualties. The cause of the explosion is generally thought to have been a meteor. It is classified as an impact event, even though no impact crater has been found; the meteor is thought to have burst in mid-air at an altitude of 5 to 10 kilometres (3 to 6 miles) rather than hit the surface of the Earth. Different studies have yielded varying estimates of the superbolide's size, on the order of 60 to 190 metres (197 to 623 feet), depending on whether the meteor was a comet or a denser asteroid. It is considered the largest impact event on Earth in recorded history.Since the 1908 event, there have been an estimated 1,000 scholarly papers (mainly in Russian) published on the Tunguska explosion. Many scientists have participated in Tunguska studies: the best known are Leonid Kulik, Yevgeny Krinov, Kirill Florensky, Nikolai Vladimirovich Vasiliev, and Wilhelm Fast. In 2013, a team of researchers led by Victor Kvasnytsya of the National Academy of Sciences of Ukraine published analysis results of micro-samples from a peat bog near the center of the affected area showing fragments that may be of meteoritic origin.Estimates of the energy of the air burst range from 30 megatons of TNT (130 PJ) to 10 and 15 megatons of TNT (42 and 63 PJ), depending on the exact height of burst estimated when the scaling-laws from the effects of nuclear weapons are employed. While more modern supercomputer calculations that include the effect of the object's momentum estimate that the airburst had an energy range from 3 to 5 megatons of TNT (13 to 21 PJ), and that simply more of this energy was focused downward than would be the case from a nuclear explosion.Using the 15 megaton nuclear explosion derived estimate is an energy about 1,000 times greater than that of the atomic bomb dropped on Hiroshima, Japan; roughly equal to that of the United States' Castle Bravo ground-based thermonuclear test detonation on March 1, 1954; and about two-fifths that of the Soviet Union's later Tsar Bomba (the largest nuclear weapon ever detonated).It is estimated that the Tunguska explosion knocked down some 80 million trees over an area of 2,150 square kilometres (830 sq mi), and that the shock wave from the blast would have measured 5.0 on the Richter scale. An explosion of this magnitude would be capable of destroying a large metropolitan area, but due to the remoteness of the location, no fatalities were documented. This event has helped to spark discussion of asteroid impact avoidance.