supplemental educational materials PDF
... can have their orbits disturbed by the giant planets and end up within the inner solar system. Many short-period comets have orbits in the same region as the asteroid belt, located between the orbits of Mars and Jupiter. There may be as many as 100 million objects in the Kuiper Belt. Long-period com ...
... can have their orbits disturbed by the giant planets and end up within the inner solar system. Many short-period comets have orbits in the same region as the asteroid belt, located between the orbits of Mars and Jupiter. There may be as many as 100 million objects in the Kuiper Belt. Long-period com ...
Asteroids and Comets and Meteors, Oh My!
... half billion years fly off into space to join a long stream of orbiting meteoroids. When the Earth hits this stream of comet junk from Tempel-Tuttle, meteors seem to shoot out of the constellation Leo. That’s why this meteor shower is called the Leonids. The Leonids are famous. The reason that the L ...
... half billion years fly off into space to join a long stream of orbiting meteoroids. When the Earth hits this stream of comet junk from Tempel-Tuttle, meteors seem to shoot out of the constellation Leo. That’s why this meteor shower is called the Leonids. The Leonids are famous. The reason that the L ...
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 ...
Other Bodies in the Solar System
... • Small Solar System bodies that orbit the sun – Orbital periods take up to hundreds of thousands of years – Short period comets originate in the Kuiper Belt – Thrown out of the belt by gravitational pulls ...
... • Small Solar System bodies that orbit the sun – Orbital periods take up to hundreds of thousands of years – Short period comets originate in the Kuiper Belt – Thrown out of the belt by gravitational pulls ...
List of Astronomical Events for 2017
... Oppositions (outer planets only) – Alignments between the Sun, Earth and an outer planet such as Mars, Jupiter, Saturn, Uranus or Neptune. During this time the planet is seen at its brightest and fullest. During an opposition, the planets will generally be visible after 9pm. Conjunctions – Alignment ...
... Oppositions (outer planets only) – Alignments between the Sun, Earth and an outer planet such as Mars, Jupiter, Saturn, Uranus or Neptune. During this time the planet is seen at its brightest and fullest. During an opposition, the planets will generally be visible after 9pm. Conjunctions – Alignment ...
rtf
... number by the number of Oort cloud analogues in the Galaxy. Direct detection of such clouds is not yet possible (Jura 2005), although their existence has been inferred by indirect arguments for several star systems (e.g. Beichman et al. 2005, Grady et al. 1997, Melnick et al. 2001). Indeed our curre ...
... number by the number of Oort cloud analogues in the Galaxy. Direct detection of such clouds is not yet possible (Jura 2005), although their existence has been inferred by indirect arguments for several star systems (e.g. Beichman et al. 2005, Grady et al. 1997, Melnick et al. 2001). Indeed our curre ...
First Census of Galaxies Near Cosmic Dawn The Night Sky
... Sighting information for other cities can be found at NASA’s Satellite Sighting Information ...
... Sighting information for other cities can be found at NASA’s Satellite Sighting Information ...
Meteorites and the Early Solar System
... Ordinary chondrites are the most common type of stone meteorite. All chondrites contain chondrules, small spherical inclusions. Ordinary chondrites are further grouped by H, L and LL classifications, indicating iron content, and by the numbers 3-7, indicating the amount of change or metamorphism in ...
... Ordinary chondrites are the most common type of stone meteorite. All chondrites contain chondrules, small spherical inclusions. Ordinary chondrites are further grouped by H, L and LL classifications, indicating iron content, and by the numbers 3-7, indicating the amount of change or metamorphism in ...
ISS Sighting Opportunities
... · With even a small telescope, you can watch Jupiter's moon Io disappear into eclipse by Jupiter's shadow around 12:04 a.m. Tuesday morning Eastern Daylight Time. Io will be barely off the planet's western limb. · Tuesday, Sept. 27 · Sometime between about 8:30 and 10 p.m., depending on where you li ...
... · With even a small telescope, you can watch Jupiter's moon Io disappear into eclipse by Jupiter's shadow around 12:04 a.m. Tuesday morning Eastern Daylight Time. Io will be barely off the planet's western limb. · Tuesday, Sept. 27 · Sometime between about 8:30 and 10 p.m., depending on where you li ...
Hot Jupiters Provoke Their Own Host Suns to Wobble
... Auroras tonight? And possibly Saturday night? A coronal mass ejection from the Sun hit the Earth around 8 this morning Eastern Daylight Time (12:00 UT), and another arrived a few hours later. They were not as strong as expected, but their effects may continue for more than a day. See our article: Po ...
... Auroras tonight? And possibly Saturday night? A coronal mass ejection from the Sun hit the Earth around 8 this morning Eastern Daylight Time (12:00 UT), and another arrived a few hours later. They were not as strong as expected, but their effects may continue for more than a day. See our article: Po ...
Asteroids, Comets, and Meteorites: Cosmic Invaders of the Earth
... speed of the farthest known galaxies some 15 billion light-years from Earth by using the red shift of their starlight. The color of light emitted by stars shifts to the longer wavelengths, or the red end of the electromagnetic spectrum (Fig. 4), when the star is moving away.The farthest galaxies the ...
... speed of the farthest known galaxies some 15 billion light-years from Earth by using the red shift of their starlight. The color of light emitted by stars shifts to the longer wavelengths, or the red end of the electromagnetic spectrum (Fig. 4), when the star is moving away.The farthest galaxies the ...
astronomy
... stones that are thought to have been aligned to track the movements of the Sun and Moon and to measure eclipses. Around 1300 BC, Chinese astronomers embarked on a long, precise study of eclipses, recording 900 solar eclipses and 600 lunar eclipses over the next 2600 years. In about 700 BC, the Babyl ...
... stones that are thought to have been aligned to track the movements of the Sun and Moon and to measure eclipses. Around 1300 BC, Chinese astronomers embarked on a long, precise study of eclipses, recording 900 solar eclipses and 600 lunar eclipses over the next 2600 years. In about 700 BC, the Babyl ...
Textbook support Describing Earth
... The lower boundary of the atmosphere is quite distinct: the surface of the land or the hydrosphere. However, because the atmosphere thins with altitude, there is no clear upper boundary of the atmosphere. The atmosphere just gets thinner and thinner as you get farther from Earth. When people refer t ...
... The lower boundary of the atmosphere is quite distinct: the surface of the land or the hydrosphere. However, because the atmosphere thins with altitude, there is no clear upper boundary of the atmosphere. The atmosphere just gets thinner and thinner as you get farther from Earth. When people refer t ...
Kepler Telescope Spots Smallest Exoplanet Yet The Night Sky
... constellations stand in a row from the northeast to south. They're all seen in profile with their noses pointed up and their feet (if any) to the right: Ursa Major in the northeast (with the Big Dipper as its brightest part), Leo in the east, Hydra the Sea Serpent in the southeast, and Canis Major i ...
... constellations stand in a row from the northeast to south. They're all seen in profile with their noses pointed up and their feet (if any) to the right: Ursa Major in the northeast (with the Big Dipper as its brightest part), Leo in the east, Hydra the Sea Serpent in the southeast, and Canis Major i ...
Lecture13.v2 - Lick Observatory
... • Most of them got nudged into highly eccentric orbits, from which they either leave the Solar System or head inwards toward the Sun • A fraction of the asteroids headed inwards may have hit the early Earth! Page 23 ...
... • Most of them got nudged into highly eccentric orbits, from which they either leave the Solar System or head inwards toward the Sun • A fraction of the asteroids headed inwards may have hit the early Earth! Page 23 ...
Meteorites: Fragments of Asteroids
... zone called the asteroid belt. The vast majority of asteroids are found in the main belt between 2 AU and 4 AU from the Sun. The discovery of new asteroids after the first four had to wait 38 more years. Finally, the wait was over when, in 1845, a German amateur astronomer announced the discovery of ...
... zone called the asteroid belt. The vast majority of asteroids are found in the main belt between 2 AU and 4 AU from the Sun. The discovery of new asteroids after the first four had to wait 38 more years. Finally, the wait was over when, in 1845, a German amateur astronomer announced the discovery of ...
Meteorites: Fragments of Asteroids - Beck-Shop
... zone called the asteroid belt. The vast majority of asteroids are found in the main belt between 2 AU and 4 AU from the Sun. The discovery of new asteroids after the first four had to wait 38 more years. Finally, the wait was over when, in 1845, a German amateur astronomer announced the discovery of ...
... zone called the asteroid belt. The vast majority of asteroids are found in the main belt between 2 AU and 4 AU from the Sun. The discovery of new asteroids after the first four had to wait 38 more years. Finally, the wait was over when, in 1845, a German amateur astronomer announced the discovery of ...
April 2014 - Bluewater Astronomical Society
... Nor is the asteroid coming unglued due to the pressure of interior ices warming and vaporizing. The asteroid is probably disintegrating due to a subtle effect of sunlight, which causes the rotation rate of the asteroid to gradually increase. Eventually, its component pieces gently pull apart, the fi ...
... Nor is the asteroid coming unglued due to the pressure of interior ices warming and vaporizing. The asteroid is probably disintegrating due to a subtle effect of sunlight, which causes the rotation rate of the asteroid to gradually increase. Eventually, its component pieces gently pull apart, the fi ...
Looking for life in unlikely places: reasons why planets may not be
... is unlikely that any non-living backscatterer could mimic this infrared signal. Another way to distinguish living from non-living backscatterers would be to analyse the backscattered light with a spectroscope and look for spectral features that might be identified with biologically interesting molecu ...
... is unlikely that any non-living backscatterer could mimic this infrared signal. Another way to distinguish living from non-living backscatterers would be to analyse the backscattered light with a spectroscope and look for spectral features that might be identified with biologically interesting molecu ...
Space Image of the Week
... together, appearing 3.1° apart this evening. Watch their orientation change drastically from day to day now that they're so close. ...
... together, appearing 3.1° apart this evening. Watch their orientation change drastically from day to day now that they're so close. ...
ISS Sighting Opportunities
... Jupiter. Which of them comes up first? It's Procyon if you're north of latitude 30° (Tijuana, New Orleans, Jacksonville), and Sirius if you're south of there. Hint: "Procyon" means "Before the Dog." That tells you something about where its namers lived. Sunday, January 5 Jupiter is at opposition. Al ...
... Jupiter. Which of them comes up first? It's Procyon if you're north of latitude 30° (Tijuana, New Orleans, Jacksonville), and Sirius if you're south of there. Hint: "Procyon" means "Before the Dog." That tells you something about where its namers lived. Sunday, January 5 Jupiter is at opposition. Al ...
Near-Earth Objects - The Koschny Family
... Figure 8: NEO families. Credit: NASA 2007 (typo for Atens corrected). The number of IEOs has increased to 11 by the time of writing of this document. ...
... Figure 8: NEO families. Credit: NASA 2007 (typo for Atens corrected). The number of IEOs has increased to 11 by the time of writing of this document. ...
Mars spacecraft poised for dramatic comet flyby NASA`s Hubble
... hours to fade and to recover. Saturday, October 11 The Moon late this evening shines near Aldebaran amid the Hyades. Take a look with binoculars. This will be a challenging scene to photograph (use a long lens), what with the Moon's brilliance and the Hyades stars' faintness. By dawn they've moved o ...
... hours to fade and to recover. Saturday, October 11 The Moon late this evening shines near Aldebaran amid the Hyades. Take a look with binoculars. This will be a challenging scene to photograph (use a long lens), what with the Moon's brilliance and the Hyades stars' faintness. By dawn they've moved o ...
Impact event
An impact event is a collision between celestial objects causing measurable effects. Impact events have physical consequences and have been found to regularly occur in planetary systems, though the most frequent involve asteroids, comets or meteoroids and have minimal impact. When large objects impact terrestrial planets like the Earth, there can be significant physical and biospheric consequences, though atmospheres mitigate many surface impacts through atmospheric entry. Impact craters and structures are dominant landforms on many of the Solar System's solid objects and present the strongest empirical evidence for their frequency and scale.Impact events appear to have played a significant role in the evolution of the Solar System since its formation. Major impact events have significantly shaped Earth's history, have been implicated in the formation of the Earth–Moon system, the evolutionary history of life, the origin of water on Earth and several mass extinctions. Notable impact events include the Chicxulub impact, 66 million years ago, believed to be the cause of the Cretaceous–Paleogene extinction event.Throughout recorded history, hundreds of Earth impacts (and exploding bolides) have been reported, with some occurrences causing deaths, injuries, property damage, or other significant localised consequences. One of the best-known recorded impacts in modern times was the Tunguska event, which occurred in Siberia, Russia, in 1908. The 2013 Chelyabinsk meteor event is the only known such event to result in a large number of injuries, and the Chelyabinsk meteor is the largest recorded object to have encountered the Earth since the Tunguska event.The most notable non-terrestrial event is the Comet Shoemaker–Levy 9 impact, which provided the first direct observation of an extraterrestrial collision of Solar System objects, when the comet broke apart and collided with Jupiter in July 1994. Most of the observed extrasolar impacts are the slow collision of galaxies; however, in 2014, one of the first massive terrestrial impacts observed was detected around the star NGC 2547 ID8 by NASA's Spitzer space telescope and confirmed by ground observations. Impact events have been a plot and background element in science fiction.