Make a Comet Motion Flip Book
... What’s This Activity About? Halley’s comet is a “short period” comet, with an orbit extending just beyond the distance of Neptune from the Sun. By modeling its orbit with a sequence of images, participants can observe the behavior of a comet as it orbits the Sun. ...
... What’s This Activity About? Halley’s comet is a “short period” comet, with an orbit extending just beyond the distance of Neptune from the Sun. By modeling its orbit with a sequence of images, participants can observe the behavior of a comet as it orbits the Sun. ...
Why is there an asteroid belt? Discovering Asteroids Asteroid Facts
... Other Kuiper Belt Objects • Most have been discovered very recently so little is known about them. • NASA’s New Horizons mission will study Pluto and a few other Kuiper Belt Objects in a planned flyby. ...
... Other Kuiper Belt Objects • Most have been discovered very recently so little is known about them. • NASA’s New Horizons mission will study Pluto and a few other Kuiper Belt Objects in a planned flyby. ...
The Cosmic Perspective Asteroids, Comets, and Dwarf Planets
... – The most recent major impact happened in 1994, when fragments of comet SL9 hit Jupiter. • Did an impact kill the dinosaurs? – Iridium layer just above dinosaur fossils suggests that an impact caused mass extinction 65 million years ago. – A large crater of that age has been found in Mexico. © ...
... – The most recent major impact happened in 1994, when fragments of comet SL9 hit Jupiter. • Did an impact kill the dinosaurs? – Iridium layer just above dinosaur fossils suggests that an impact caused mass extinction 65 million years ago. – A large crater of that age has been found in Mexico. © ...
Chapter12.2
... Other Kuiper Belt Objects • Most have been discovered very recently so little is known about them. • NASA’s New Horizons mission will study Pluto and a few other Kuiper belt object in a planned flyby. ...
... Other Kuiper Belt Objects • Most have been discovered very recently so little is known about them. • NASA’s New Horizons mission will study Pluto and a few other Kuiper belt object in a planned flyby. ...
Investigation of evolution of orbits similar to that of (4179) Toutatis
... the opposite side of the Sun can protect the asteroid from the closest possible approaches to Jupiter and hence from the largest perturbing effects. Secular resonances occur when an asteroid’s rate of precession of longitude of perihelion (or longitude of ascending node) is near a ratio p:q of that ...
... the opposite side of the Sun can protect the asteroid from the closest possible approaches to Jupiter and hence from the largest perturbing effects. Secular resonances occur when an asteroid’s rate of precession of longitude of perihelion (or longitude of ascending node) is near a ratio p:q of that ...
INTRODUCTION As in the last years, the Ephemerides of Minor
... As in the last years, the Ephemerides of Minor Planets for 2017 are prepared by the IAA RAS only in the electronic form. Distribution of the EMP-2017 is accomplished via Internet or through sending compact disks (CD) by mail. As compared with period before 2012, the substantial changes are introduce ...
... As in the last years, the Ephemerides of Minor Planets for 2017 are prepared by the IAA RAS only in the electronic form. Distribution of the EMP-2017 is accomplished via Internet or through sending compact disks (CD) by mail. As compared with period before 2012, the substantial changes are introduce ...
Chapter12.1
... C. The belt is where all the asteroids happened to survive. But WHY didn’t they form a planet? © 2010 Pearson Education, Inc. ...
... C. The belt is where all the asteroids happened to survive. But WHY didn’t they form a planet? © 2010 Pearson Education, Inc. ...
Scaling and the Solar System
... diameter of the ball divided by the actual diameter of the Sun. From a text, you can find that the diameter of the Sun is about 1.392x106 km. You must first convert that into centimeters, the same units as you used to measure the ball, and so you multiply by the number of centimeters in a kilometer, ...
... diameter of the ball divided by the actual diameter of the Sun. From a text, you can find that the diameter of the Sun is about 1.392x106 km. You must first convert that into centimeters, the same units as you used to measure the ball, and so you multiply by the number of centimeters in a kilometer, ...
Space Bits: Outer Space Objects
... Want more workbooks? Join Education.com Plus to save time and money. http://www.education.com/education-plus/ Copyright © 2012 Education.com. All Rights Reserved ...
... Want more workbooks? Join Education.com Plus to save time and money. http://www.education.com/education-plus/ Copyright © 2012 Education.com. All Rights Reserved ...
Edward RD Scott and Horton E. Newsom Institute of
... atures, and these temperatures decreased with increas ing distance from the Sun. Variations in the metalsilicate ratio of chondritic meteorites, which could not be accommodated in this model, were considered by Lewis [4] to be 'artifacts of accretion of small parent bodies' that result from selecti ...
... atures, and these temperatures decreased with increas ing distance from the Sun. Variations in the metalsilicate ratio of chondritic meteorites, which could not be accommodated in this model, were considered by Lewis [4] to be 'artifacts of accretion of small parent bodies' that result from selecti ...
Chapter 9: Asteroids, Comets, and Dwarf Planets: Their Nature
... • Most have been discovered very recently so little is known about them. • NASA's New Horizons mission will study Pluto in a planned flyby and will attempt to visit a few other Kuiper Belt Objects. ...
... • Most have been discovered very recently so little is known about them. • NASA's New Horizons mission will study Pluto in a planned flyby and will attempt to visit a few other Kuiper Belt Objects. ...
A coupling of the origin of asteroid belt, planetary ring
... asteroid belt and planetary ring should share a common physics. On the other hand, the Saturnian F ring and the Uranian ε ring are both narrow, and are generally shepherded by a pair of moons (Esposito 2002), the outer rings of Uranus are similar to the outer G and E rings of Saturn (Pater et al. 2 ...
... asteroid belt and planetary ring should share a common physics. On the other hand, the Saturnian F ring and the Uranian ε ring are both narrow, and are generally shepherded by a pair of moons (Esposito 2002), the outer rings of Uranus are similar to the outer G and E rings of Saturn (Pater et al. 2 ...
A coupling of the origin of asteroid belt, planetary ring
... scenarios and developed a model to propose that planetary tidal forces strip ice material from a Titan-sized satellite to form a pure ice ring and icy moons are subsequently spawned from the ring [7]. If Saturn’s rings are evolved from a pure ice ring, it is necessary for them to keep identical mate ...
... scenarios and developed a model to propose that planetary tidal forces strip ice material from a Titan-sized satellite to form a pure ice ring and icy moons are subsequently spawned from the ring [7]. If Saturn’s rings are evolved from a pure ice ring, it is necessary for them to keep identical mate ...
2009_Lecture15.v2
... occurred every few thousand years. Now they only occur over tens or hundreds of millions of years (so the lunar surface hasn’t changed too much). ...
... occurred every few thousand years. Now they only occur over tens or hundreds of millions of years (so the lunar surface hasn’t changed too much). ...
The Potato Radius: a Lower Minimum Size for Dwarf Planets
... in outer space with R < ~few km can be potatoid (rather than irregular) due to erosion from small impacts and weathering - not from a compromise between electronic forces and gravity. Ignoring these complications, the five shapes in Figure 1 are the result of non-mass-dependent electronic forces, ma ...
... in outer space with R < ~few km can be potatoid (rather than irregular) due to erosion from small impacts and weathering - not from a compromise between electronic forces and gravity. Ignoring these complications, the five shapes in Figure 1 are the result of non-mass-dependent electronic forces, ma ...
Lecture14.v1 - Lick Observatory
... occurred every few thousand years. Now they only occur over tens or hundreds of millions of years (so the lunar surface hasn’t changed too much). ...
... occurred every few thousand years. Now they only occur over tens or hundreds of millions of years (so the lunar surface hasn’t changed too much). ...
Overlapping of secular resonances in a Venus horseshoe orbit
... (Michel & Thomas 1996) during 2 × 105 years, and just afterwards the body is trapped in the 1/1 mean motion resonance with Venus. Then, until the end of the 3.5 Myr integration time span, the semimajor oscillates around that of Venus. As shown in Fig. 6 of Michel et al. (1996), the critical argument ...
... (Michel & Thomas 1996) during 2 × 105 years, and just afterwards the body is trapped in the 1/1 mean motion resonance with Venus. Then, until the end of the 3.5 Myr integration time span, the semimajor oscillates around that of Venus. As shown in Fig. 6 of Michel et al. (1996), the critical argument ...
Here - TPS Publishing
... predictions and hypotheses confirmed. They are also having their predictions and hypotheses proven wrong. This happens all the time in scientific investigations. Scientists collect more information, ask more questions, revise their ideas, and collect more information. Studying space science is fasci ...
... predictions and hypotheses confirmed. They are also having their predictions and hypotheses proven wrong. This happens all the time in scientific investigations. Scientists collect more information, ask more questions, revise their ideas, and collect more information. Studying space science is fasci ...
The potential meteoroid streams crossing the orbits of terrestrial
... streams, the daytime Arietids and Geminids could produce significant numbers of meteors at Mars but have not produced (so far) meteor storms that could present significant dangers to spacecraft. In 2001, Larson published a simple geometric method for determining the closest proximity between the orb ...
... streams, the daytime Arietids and Geminids could produce significant numbers of meteors at Mars but have not produced (so far) meteor storms that could present significant dangers to spacecraft. In 2001, Larson published a simple geometric method for determining the closest proximity between the orb ...
4 Inner versus Outer Planets
... While studying the solar system, Johannes Kepler discovered the relationship between the time it takes a planet to make one complete orbit around the Sun, its "orbital period," and the distance from the Sun to the planet. If the orbital period of a planet is known, then it is possible to determine t ...
... While studying the solar system, Johannes Kepler discovered the relationship between the time it takes a planet to make one complete orbit around the Sun, its "orbital period," and the distance from the Sun to the planet. If the orbital period of a planet is known, then it is possible to determine t ...
The Cosmic Perspective Asteroids, Comets, and Dwarf Planets
... About how often is it estimated that an asteroid or comet impacts Earth with sufficient energy to cause mass extinction? a) b) c) d) ...
... About how often is it estimated that an asteroid or comet impacts Earth with sufficient energy to cause mass extinction? a) b) c) d) ...
Beyond Planet Earth Educators Guide
... scheduled to launch in 2018 and designed primarily to detect infrared light, this large telescope will observe extremely distant objects — including the first stars and galaxies that formed in the universe. ...
... scheduled to launch in 2018 and designed primarily to detect infrared light, this large telescope will observe extremely distant objects — including the first stars and galaxies that formed in the universe. ...
Comets
... The Philae lander indeed reached the surface. Unfortunately, it bounced and eventually wound up settling in a shaded area next to a vertical wall. This limited the available solar power and thus the time available for direct experiments (the batteries ...
... The Philae lander indeed reached the surface. Unfortunately, it bounced and eventually wound up settling in a shaded area next to a vertical wall. This limited the available solar power and thus the time available for direct experiments (the batteries ...
Near-Earth object
A near-Earth object (NEO) is a small Solar System body whose orbit brings it into proximity with Earth. All NEOs have a closest approach to the Sun (perihelion) of less than 1.3 astronomical unit (AU). They include about thirteen thousand near-Earth asteroids (NEAs), more than one hundred near-Earth comets (NECs), and a number of solar-orbiting spacecraft and meteoroids, large enough to be tracked in space before striking the Earth. It is now widely accepted that collisions in the past have had a significant role in shaping the geological and biological history of the planet. NEOs have become of increased interest since the 1980s because of increased awareness of the potential danger some of the asteroids or comets pose to Earth, and active mitigations are being researched.NEAs have orbits that lie partly between 0.983 and 1.3 AU away from the Sun. When an NEA is detected it is submitted to the IAU's Minor Planet Center for cataloging. Some NEAs ' orbits intersect that of Earth's so they pose a collision danger. The United States, European Union, and other nations are currently scanning for NEOs in an effort called Spaceguard.In the United States, NASA has a congressional mandate to catalogue all NEOs that are at least 1 kilometer wide, as the impact of such an object would be catastrophic. As of June 2015, there have been 872 NEAs larger than 1 km discovered, of which 153 are potentially hazardous. It was estimated in 2006 that 20% of the mandated objects have not yet been found. As a result of NEOWISE in 2011, it is estimated that 93% of the NEAs larger than 1 km have been found and that only about 70 remain to be discovered. Our inventory is much less complete for smaller objects, which still have potential for large scale damage.Potentially hazardous objects (PHOs) are currently defined based on parameters that measure the object's potential to make threatening close approaches to the Earth. Mostly objects with an Earth minimum orbit intersection distance (MOID) of 0.05 AU or less and an absolute magnitude (H) of 22.0 or brighter (a rough indicator of large size) are considered PHOs. Objects that cannot approach closer to the Earth (i.e. MOID) than 0.05 AU (7,500,000 km; 4,600,000 mi), or are smaller than about 150 m (500 ft) in diameter (i.e. H = 22.0 with assumed albedo of 13%), are not considered PHOs. The NASA Near Earth Object Catalog also includes the approach distances of asteroids and comets measured in lunar distances, and this usage has become a common unit of measure used by the news media in discussing these objects.Some NEOs are of high interest because they can be physically explored with lower mission velocity even than the Moon, due to their combination of low velocity with respect to Earth (ΔV) and small gravity, so they may present interesting scientific opportunities both for direct geochemical and astronomical investigation, and as potentially economical sources of extraterrestrial materials for human exploitation. This makes them an attractive target for exploration. As of 2012, three near-Earth objects have been visited by spacecraft: 433 Eros, by NASA's Near Earth Asteroid Rendezvous probe, 25143 Itokawa, by the JAXA Hayabusa mission, and 4179 Toutatis, by CNSA's Chang'e 2 spacecraft.