[21.01] The Kuiper Belt Survey of the GEST Mission
... and biassed against detection of KBOs in more distant resonances (e.g. the 2:1 resonance at 47 AU) that firm estimates of the migration parameters have not been derived. 2. The known KBOs are mostly larger than about 100 km in diameter. These objects must have accreted in an environment where the ve ...
... and biassed against detection of KBOs in more distant resonances (e.g. the 2:1 resonance at 47 AU) that firm estimates of the migration parameters have not been derived. 2. The known KBOs are mostly larger than about 100 km in diameter. These objects must have accreted in an environment where the ve ...
The Space Environment It is a great privilege to be invited to share
... the Sun. The CME is initially quite similar to the loops of energetic particles that we saw in figure 9. In this case however, the magnetic field that contains the particles is destroyed at the base producing a solar flare. Then the particles and magnetic field are ejected into interplanetary space. ...
... the Sun. The CME is initially quite similar to the loops of energetic particles that we saw in figure 9. In this case however, the magnetic field that contains the particles is destroyed at the base producing a solar flare. Then the particles and magnetic field are ejected into interplanetary space. ...
Jupiter, the dominant Gas Giant Planet
... Jupiter is the first of four planets categorized as Jovian Gas Giants. Jovian is derived from the Latin name for Jupiter. ...
... Jupiter is the first of four planets categorized as Jovian Gas Giants. Jovian is derived from the Latin name for Jupiter. ...
No Slide Title
... – which occupies most of northeastern Canada – a large part of Greenland – parts of the Lake Superior region • in Minnesota, Wisconsin and Michigan ...
... – which occupies most of northeastern Canada – a large part of Greenland – parts of the Lake Superior region • in Minnesota, Wisconsin and Michigan ...
Earth and spaces
... There are nine planets moving around the sun, the Earth is one of them. The sun and the nine planets make up the solar system. ...
... There are nine planets moving around the sun, the Earth is one of them. The sun and the nine planets make up the solar system. ...
Solar System - Wikimedia Commons
... Our Solar System is part of a much larger system called the Milky Way. This is a vast mix of dust, gas, stars, and other objects that is called a galaxy. Our galaxy rotates about the center, and if you could see it from a long, long way off it would look like a wispy pin-wheel. Within our Milky Way ...
... Our Solar System is part of a much larger system called the Milky Way. This is a vast mix of dust, gas, stars, and other objects that is called a galaxy. Our galaxy rotates about the center, and if you could see it from a long, long way off it would look like a wispy pin-wheel. Within our Milky Way ...
Chapter 2
... 3. Which of these variables affects the strength of a gravitational interaction? a) how fast the Earth rotates b) the atmospheric (air) pressure c) the distance between the objects d) the volume of the objects e) the strength of the Earth’s magnetic field 4. Which of these statements is not true? a) ...
... 3. Which of these variables affects the strength of a gravitational interaction? a) how fast the Earth rotates b) the atmospheric (air) pressure c) the distance between the objects d) the volume of the objects e) the strength of the Earth’s magnetic field 4. Which of these statements is not true? a) ...
Kepler Mission Workshop Presentation
... • Kepler Mission is optimized for finding habitable planets ( 0.5 to 10 MÅ ) in the HZ ( near 1 AU ) of solar-like stars • Continuously and simultaneously monitor 100,000 main-sequence stars • Use a one-meter Schmidt telescope: FOV >100 deg2 with an array of 42 CCD • Photometric precision: Noise < 2 ...
... • Kepler Mission is optimized for finding habitable planets ( 0.5 to 10 MÅ ) in the HZ ( near 1 AU ) of solar-like stars • Continuously and simultaneously monitor 100,000 main-sequence stars • Use a one-meter Schmidt telescope: FOV >100 deg2 with an array of 42 CCD • Photometric precision: Noise < 2 ...
January 2014 - astronomy for beginners
... the phases of the Moon. To understand the diagram we must imagine the Sun is positioned way off the top of the diagram. The Sun will therefore be illuminating the upper half of Earth and of the Moon. Now we must imagine we are looking at the Moon from the surface of Earth (lower images). In the left ...
... the phases of the Moon. To understand the diagram we must imagine the Sun is positioned way off the top of the diagram. The Sun will therefore be illuminating the upper half of Earth and of the Moon. Now we must imagine we are looking at the Moon from the surface of Earth (lower images). In the left ...
Activity 06 - Total Solar Eclipse 2012
... LUNAR ECLIPSE—The passage of the Moon into the shadow of the Earth, always occurring at a full moon. PATH OF TOTALITY—The path (up to about 270 km wide) that the Moon’s umbral shadow traces on the Earth during a total solar eclipse. TOTAL ECLIPSE—An eclipse during which the umbra touches the Earth ( ...
... LUNAR ECLIPSE—The passage of the Moon into the shadow of the Earth, always occurring at a full moon. PATH OF TOTALITY—The path (up to about 270 km wide) that the Moon’s umbral shadow traces on the Earth during a total solar eclipse. TOTAL ECLIPSE—An eclipse during which the umbra touches the Earth ( ...
Science and Creation
... “This new planet [orbiting Iota Horologii] adds to the suspicion that our solar system with its neat, circular, coplanar orbits, may be the exception rather than the rule” Extrasolar planet discoverer Geoffrey W. Marcy, quoted in Science News, Vol. 156 No. 7, p. 106 ...
... “This new planet [orbiting Iota Horologii] adds to the suspicion that our solar system with its neat, circular, coplanar orbits, may be the exception rather than the rule” Extrasolar planet discoverer Geoffrey W. Marcy, quoted in Science News, Vol. 156 No. 7, p. 106 ...
American Scientist
... disk dissipates. Even forming Neptune within the paradigm of core accretion takes too long due to its relative remoteness from the Sun. The devil is in the details and, unfortunately, they do matter when trying to construct synthetic exoplanets. Rocks are Hard to See ...
... disk dissipates. Even forming Neptune within the paradigm of core accretion takes too long due to its relative remoteness from the Sun. The devil is in the details and, unfortunately, they do matter when trying to construct synthetic exoplanets. Rocks are Hard to See ...
giant planet formation i. introduction
... drawn from this: (i) they have inner temperatures of a few thousand Kelvins or more, and therefore, their hydrogen-helium envelopes are uid; (ii) they are mostly convective (see Hubbard 1968, Stevenson and Salpeter 1977). The convective hypothesis has been challenged (Guillot et al. 1994a), but the ...
... drawn from this: (i) they have inner temperatures of a few thousand Kelvins or more, and therefore, their hydrogen-helium envelopes are uid; (ii) they are mostly convective (see Hubbard 1968, Stevenson and Salpeter 1977). The convective hypothesis has been challenged (Guillot et al. 1994a), but the ...
A105 Stars and Galaxies
... Large gaps due to resonances with Saturn’s moons located beyond the rings Narrow gaps due to complex interaction between ring particles and tiny moons in the ...
... Large gaps due to resonances with Saturn’s moons located beyond the rings Narrow gaps due to complex interaction between ring particles and tiny moons in the ...
Where is it? On the Celestial Sphere
... The Location of Celestial Objects All Celestial objects can be located: • In the sky at a given time with Altitude and Azimuth But that changes due to the motion of the celestial sphere. • On the Celestial Sphere with Right Ascension and Declination. The RA and Dec of almost all celestial objects ...
... The Location of Celestial Objects All Celestial objects can be located: • In the sky at a given time with Altitude and Azimuth But that changes due to the motion of the celestial sphere. • On the Celestial Sphere with Right Ascension and Declination. The RA and Dec of almost all celestial objects ...
Solar system formation by accretion has no observational evidence
... circumsolar dust were attributed to sun-grazing comets. Thus, dust from the nebula was absent, suggesting that there had been no nebula. On the other hand, observations of debris formation are common in astronomy, especially in cases of stellar instability discussed below. The cosmos seems to be und ...
... circumsolar dust were attributed to sun-grazing comets. Thus, dust from the nebula was absent, suggesting that there had been no nebula. On the other hand, observations of debris formation are common in astronomy, especially in cases of stellar instability discussed below. The cosmos seems to be und ...
Question 2 (9-3 thru 9-4 PPT Questions)
... thought to be the result of a close-orbiting, icy moon that was shattered by a collision with a passing asteroid. Another possibility is that an object from the outer solar system came too close to Saturn and was torn apart by the planet’s gravity. ...
... thought to be the result of a close-orbiting, icy moon that was shattered by a collision with a passing asteroid. Another possibility is that an object from the outer solar system came too close to Saturn and was torn apart by the planet’s gravity. ...
Rocks
... Basaltic rocks: they are dense and heavy, dark colored and rich in iron and magnesium (these are common in the Hawaiian Islands) Granitic rocks: they are light colored, have lower density than basaltic rocks and they contain a lot of silicon and oxygen Andesitic rocks: they have mineral combinations ...
... Basaltic rocks: they are dense and heavy, dark colored and rich in iron and magnesium (these are common in the Hawaiian Islands) Granitic rocks: they are light colored, have lower density than basaltic rocks and they contain a lot of silicon and oxygen Andesitic rocks: they have mineral combinations ...
Lecture 1
... same time, which would be expected to be warmer? Which would be expected to have more tectonic activity? Planet #1, Planet #1 Planet #1, Planet #2 Planet #2, Planet #2 Planet #2, Planet #1 ...
... same time, which would be expected to be warmer? Which would be expected to have more tectonic activity? Planet #1, Planet #1 Planet #1, Planet #2 Planet #2, Planet #2 Planet #2, Planet #1 ...
Script
... The transit method also makes it possible to study the atmosphere of the transiting planet. When the planet transits the star, light from the star passes through the upper atmosphere of the planet. By studying the high-resolution stellar spectrum carefully, one can detect elements present in the pla ...
... The transit method also makes it possible to study the atmosphere of the transiting planet. When the planet transits the star, light from the star passes through the upper atmosphere of the planet. By studying the high-resolution stellar spectrum carefully, one can detect elements present in the pla ...
Chapter 2
... Many other cultures are now known to have been capable of similarly precise accomplishments. The Big Horn Medicine Wheel in Wyoming (Figure 2.2a) is similar to Stonehenge in design—and, presumably, intent—although it is somewhat simpler in execution. The Medicine Wheel’s alignments with the rising a ...
... Many other cultures are now known to have been capable of similarly precise accomplishments. The Big Horn Medicine Wheel in Wyoming (Figure 2.2a) is similar to Stonehenge in design—and, presumably, intent—although it is somewhat simpler in execution. The Medicine Wheel’s alignments with the rising a ...
It is my opinion that the Earth is very nob le and admirable ••• and if it
... Even smaller hits, of which ...
... Even smaller hits, of which ...
2.9: Nomenclature of sedimentary rocks
... from space, commonly from our solar system, rarely from farther away. Most material evaporates in the atmosphere due to the heat caused by friction, but fragments that reach the earth are called meteorites if they are larger than 1 mm in diameter, micrometeorites if smaller but still macroscopically ...
... from space, commonly from our solar system, rarely from farther away. Most material evaporates in the atmosphere due to the heat caused by friction, but fragments that reach the earth are called meteorites if they are larger than 1 mm in diameter, micrometeorites if smaller but still macroscopically ...
Jovian Planets
... • Formed from dust created in impacts on orbiting moons. • Not left over from planet formation-- the particles are too small to have survived this long. • Tiny particles are constantly ejected and must be continuously replaced. ...
... • Formed from dust created in impacts on orbiting moons. • Not left over from planet formation-- the particles are too small to have survived this long. • Tiny particles are constantly ejected and must be continuously replaced. ...
Late Heavy Bombardment
The Late Heavy Bombardment (abbreviated LHB and also known as the lunar cataclysm) is a hypothetical event thought to have occurred approximately 4.1 to 3.8 billion years (Ga) ago, corresponding to the Neohadean and Eoarchean eras on Earth. During this interval, a disproportionately large number of asteroids apparently collided with the early terrestrial planets in the inner Solar System, including Mercury, Venus, Earth, and Mars. The LHB happened after the Earth and other rocky planets had formed and accreted most of their mass, but still quite early in Earth's history.Evidence for the LHB derives from lunar samples brought back by the Apollo astronauts. Isotopic dating of Moon rocks implies that most impact melts occurred in a rather narrow interval of time. Several hypotheses are now offered to explain the apparent spike in the flux of impactors (i.e. asteroids and comets) in the inner Solar System, but no consensus yet exists. The Nice model is popular among planetary scientists; it postulates that the gas giant planets underwent orbital migration and scattered objects in the asteroid and/or Kuiper belts into eccentric orbits, and thereby into the path of the terrestrial planets. Other researchers argue that the lunar sample data do not require a cataclysmic cratering event near 3.9 Ga, and that the apparent clustering of impact melt ages near this time is an artifact of sampling materials retrieved from a single large impact basin. They also note that the rate of impact cratering could be significantly different between the outer and inner zones of the Solar System.