Week 4
... • Orbits are elliptical. • The closer an object is in its orbit to the Sun, the faster it goes. • The square of the orbital period is proportional to the cube of its semi-major axis: P2 = a3. (P is how long it takes to make one orbit in years. a is distance in ...
... • Orbits are elliptical. • The closer an object is in its orbit to the Sun, the faster it goes. • The square of the orbital period is proportional to the cube of its semi-major axis: P2 = a3. (P is how long it takes to make one orbit in years. a is distance in ...
Properties of the Asteroids
... the time taken for it to eclipse the light of a background star if it moves in front, in what is known as an occultation. If its orbital parameters are known – how far away it is, how fast it’s moving – then the duration of the eclipse can allow you to estimate size of the object. There may be very ...
... the time taken for it to eclipse the light of a background star if it moves in front, in what is known as an occultation. If its orbital parameters are known – how far away it is, how fast it’s moving – then the duration of the eclipse can allow you to estimate size of the object. There may be very ...
Small Bodies of the Solar System Transcript
... We can determine the size of an asteroid by the time taken for it to eclipse the light of a background star if it moves in front, in what is known as an occultation. If its orbital parameters are known – how far away it is, how fast it’s moving – then the duration of the eclipse can allow you to est ...
... We can determine the size of an asteroid by the time taken for it to eclipse the light of a background star if it moves in front, in what is known as an occultation. If its orbital parameters are known – how far away it is, how fast it’s moving – then the duration of the eclipse can allow you to est ...
name those asteroids!
... National and international space agencies are cooperating to plan for human exploration of the outer Solar System. Their intention is to send expeditions to the moons of Jupiter, Saturn, Uranus, and Neptune to explore, collect samples, and search for clues to the beginnings of the Solar System. It i ...
... National and international space agencies are cooperating to plan for human exploration of the outer Solar System. Their intention is to send expeditions to the moons of Jupiter, Saturn, Uranus, and Neptune to explore, collect samples, and search for clues to the beginnings of the Solar System. It i ...
The Asteroid Belt
... (b) Failed Planets? Asteroid-like objects are believed to have filled the early Solar System. Computer simulations provide evidence that Jupiter’s strong gravity and tidal effects disrupted the orbits of these planetesimals within the asteroid belt. As a result much of this material was ejected fro ...
... (b) Failed Planets? Asteroid-like objects are believed to have filled the early Solar System. Computer simulations provide evidence that Jupiter’s strong gravity and tidal effects disrupted the orbits of these planetesimals within the asteroid belt. As a result much of this material was ejected fro ...
Chapter 10
... • Most asteroids (thousands) lie in the asteroid belt, a region between the orbits of Mars and Jupiter • The first asteroid (Ceres) of this asteroid belt swarm was discovered as a result of a search for the “missing planet” of Bode’s law • The combined mass of all the asteroids is probably less than ...
... • Most asteroids (thousands) lie in the asteroid belt, a region between the orbits of Mars and Jupiter • The first asteroid (Ceres) of this asteroid belt swarm was discovered as a result of a search for the “missing planet” of Bode’s law • The combined mass of all the asteroids is probably less than ...
Asteroids and Meteoroids
... day. It is believed that violent collisions are common for asteroids, and that many asteroids have in their past experienced complex rotations like Toutatis as a consequence of such collisions. However, internal friction has caused them to dampen into simple rotation in relatively brief amounts of t ...
... day. It is believed that violent collisions are common for asteroids, and that many asteroids have in their past experienced complex rotations like Toutatis as a consequence of such collisions. However, internal friction has caused them to dampen into simple rotation in relatively brief amounts of t ...
Chapter 10 - Astronomy
... 6. Asteroids are classified in a number of ways including by position (e.g., asteroid belt, near-Earth, and Trojans) and by type (bright, metallic and reddish S-type, bright, metallic and non-reddish M-type, and dark C-type). 7. Asteroids are irregular in shape, and thus reflect different amounts of ...
... 6. Asteroids are classified in a number of ways including by position (e.g., asteroid belt, near-Earth, and Trojans) and by type (bright, metallic and reddish S-type, bright, metallic and non-reddish M-type, and dark C-type). 7. Asteroids are irregular in shape, and thus reflect different amounts of ...
Astronomy that falls from the sky
... rocks). Research indicates this iridium is from an asteroid, about six miles in diameter, hitting the Earth at a speed estimated between 50,000 and 100,000 miles an hour. A combination of natural effects then killed off two-thirds to three-quarters of all plants and animals, including the dinosaurs. ...
... rocks). Research indicates this iridium is from an asteroid, about six miles in diameter, hitting the Earth at a speed estimated between 50,000 and 100,000 miles an hour. A combination of natural effects then killed off two-thirds to three-quarters of all plants and animals, including the dinosaurs. ...
Avoiding a Collision with an Asteroid
... Egyptian god) which will come between the Earth and our satellites in April 2029 and again in 2036. It is 325 m wide (about three football fields). A collision with this asteroid would be disastrous. An iron meteorite about half the size of Apophis was able to cause a crater .72 miles across called ...
... Egyptian god) which will come between the Earth and our satellites in April 2029 and again in 2036. It is 325 m wide (about three football fields). A collision with this asteroid would be disastrous. An iron meteorite about half the size of Apophis was able to cause a crater .72 miles across called ...
27/04/2016 - Daphne`s Daily Quiz
... 12. Who gave Michael Foot, the Labour MP for Blaenau Gwent, his first ministerial post in 1974 when he was appointed Secretary of State for Employment? 13. Stourhead House, built for the banker Henry Hoare in 1720, and now in the care of the National Trust, is in which English county? 14. What are b ...
... 12. Who gave Michael Foot, the Labour MP for Blaenau Gwent, his first ministerial post in 1974 when he was appointed Secretary of State for Employment? 13. Stourhead House, built for the banker Henry Hoare in 1720, and now in the care of the National Trust, is in which English county? 14. What are b ...
Meteroroids! Asteroids! Comets!
... from the sun because the solar wind. Dust Tail: The dust tail is a long, wide tail composed of tiny dust particles ; this tail curves slightly due to the comet's motion. ...
... from the sun because the solar wind. Dust Tail: The dust tail is a long, wide tail composed of tiny dust particles ; this tail curves slightly due to the comet's motion. ...
Meteroroids! Asteroids! Comets!
... from the sun because the solar wind. Dust Tail: The dust tail is a long, wide tail composed of tiny dust particles ; this tail curves slightly due to the comet's motion. ...
... from the sun because the solar wind. Dust Tail: The dust tail is a long, wide tail composed of tiny dust particles ; this tail curves slightly due to the comet's motion. ...
Collision Course
... to measure them is given, but pupils need to decide how to proceed. They could be split into different groups to investigate the effect of one of the four variables listed under the heading ‘Investigation choices’. In every instance pupils (individually or in teams) should write out a plan showing h ...
... to measure them is given, but pupils need to decide how to proceed. They could be split into different groups to investigate the effect of one of the four variables listed under the heading ‘Investigation choices’. In every instance pupils (individually or in teams) should write out a plan showing h ...
Characteristics of Near
... Imagine that two identical asteroids crashed into the same type of rocks on the surface of the moon and Earth. Both produce impact craters. How do the impact craters ...
... Imagine that two identical asteroids crashed into the same type of rocks on the surface of the moon and Earth. Both produce impact craters. How do the impact craters ...
Nov-17 - X-Squared Radio
... NASA is reporting that the sun will do it's cyclic magnetic pole shift very soon (within 3-4 months but some scientists are saying within 1 month). This is a very regular event (every 11 years), so there is nothing to fear here. However, knowing how much solar flares have been affecting us now compa ...
... NASA is reporting that the sun will do it's cyclic magnetic pole shift very soon (within 3-4 months but some scientists are saying within 1 month). This is a very regular event (every 11 years), so there is nothing to fear here. However, knowing how much solar flares have been affecting us now compa ...
EvlAp3Ec - studylib.net
... Institute of Earth's Cryosphere of SB RAS, Tyumen, Russia Institute of Thermophysics of SB RAS, Novosibirsk, Russia Abstract. As a result of the analysis of publications it is established that uncertainty of trajectories of Apophis are caused by imperfection of methods of its determination. The diff ...
... Institute of Earth's Cryosphere of SB RAS, Tyumen, Russia Institute of Thermophysics of SB RAS, Novosibirsk, Russia Abstract. As a result of the analysis of publications it is established that uncertainty of trajectories of Apophis are caused by imperfection of methods of its determination. The diff ...
EvlAp3Ec
... So, on April 13, 2029 Apophis will pass by the Earth 38907 km apart from its centre and in the nearest one thousand years such close approaches to the Earth will not happen anymore. Therefore thanks to a happy opportunity, the possibility to transmute Apophis into a satellite of the Earth and then i ...
... So, on April 13, 2029 Apophis will pass by the Earth 38907 km apart from its centre and in the nearest one thousand years such close approaches to the Earth will not happen anymore. Therefore thanks to a happy opportunity, the possibility to transmute Apophis into a satellite of the Earth and then i ...
Document
... the dinosaurs were alive - about 65 million years ago. • That collision may have changed our atmosphere and led to the extinction of the dinosaurs. ...
... the dinosaurs were alive - about 65 million years ago. • That collision may have changed our atmosphere and led to the extinction of the dinosaurs. ...
XI. Astronomy: Solar-System Debris and Comets
... two lumpy, cratered rocks stuck together. Roughly 4 X 7 km in size, it is the slowest-rotating meteoroid known, taking about 10-11 days to make one turn. ...
... two lumpy, cratered rocks stuck together. Roughly 4 X 7 km in size, it is the slowest-rotating meteoroid known, taking about 10-11 days to make one turn. ...
Comets, Asteroids, and Meteors
... Between 1802 and 1807, astronomers discovered four small objects between the orbits of Mars and Jupiter. They named these objects Ceres, Pallas, Juno, and Vesta. Over the next 80 years, astronomers found over 300 more. These rocky objects, called asteroids, are too small and too numerous to be consi ...
... Between 1802 and 1807, astronomers discovered four small objects between the orbits of Mars and Jupiter. They named these objects Ceres, Pallas, Juno, and Vesta. Over the next 80 years, astronomers found over 300 more. These rocky objects, called asteroids, are too small and too numerous to be consi ...
The Asteroid Belt as the Consequence of Resonance Density
... the current age of the solar system as ~1.4·1017 s, the total energy available within the volume of the solar system moving through space from the universal dynamic pressure would be ~2.5·1040 J. The mass equivalent (by dividing by c2 or 9·1016 m2·s-2) is 2.7·1023 kg. This value is about a factor of ...
... the current age of the solar system as ~1.4·1017 s, the total energy available within the volume of the solar system moving through space from the universal dynamic pressure would be ~2.5·1040 J. The mass equivalent (by dividing by c2 or 9·1016 m2·s-2) is 2.7·1023 kg. This value is about a factor of ...
Comets, asteroids, and meteors oh my!
... – Seen once only 76 years – Last seen in 1986 – Next time we will see Halley’s comet will be around 2062 this is a prediction ...
... – Seen once only 76 years – Last seen in 1986 – Next time we will see Halley’s comet will be around 2062 this is a prediction ...
23.4 Minor Members of the Solar System
... Many asteroids have irregular shapes. Because of this, planetary geologists speculate they might be fragments of a broken planet that once orbited between Mars and Jupiter. ...
... Many asteroids have irregular shapes. Because of this, planetary geologists speculate they might be fragments of a broken planet that once orbited between Mars and Jupiter. ...
Asteroid impact avoidance
Asteroid impact avoidance comprises a number of methods by which near-Earth objects (NEO) could be diverted, preventing destructive impact events. A sufficiently large impact by an asteroid or other NEOs would cause, depending on its impact location, massive tsunamis, multiple firestorms and an impact winter caused by the sunlight blocking effect of placing large quantities of pulverized rock dust, and other debris, into the stratosphere.A collision between the Earth and an approximately 10-kilometre-wide object 66 million years ago is thought to have produced the Chicxulub Crater and the Cretaceous–Paleogene extinction event, widely held responsible for the extinction of the dinosaurs.While the chances of a major collision are not great in the near term, there is a high probability that one will happen eventually unless defensive actions are taken. Recent astronomical events—such as the Shoemaker-Levy 9 impacts on Jupiter and the 2013 Chelyabinsk meteor along with the growing number of objects on the Sentry Risk Table—have drawn renewed attention to such threats.