Uranus and its Moons
... probably due to methane ices Moons are dark - grayish in appearance Carbon in the form of soot or graphite ...
... probably due to methane ices Moons are dark - grayish in appearance Carbon in the form of soot or graphite ...
Saturn - TeacherLINK
... many of the satellites lie totally within Saturn’s enormous magnetosphere, the region of space in which the behavior of electrically charged particles is influenced more by Saturn’s magnetic field than by the solar wind. Hubble Space Telescope images show that Saturn’s polar regions have aurorae simil ...
... many of the satellites lie totally within Saturn’s enormous magnetosphere, the region of space in which the behavior of electrically charged particles is influenced more by Saturn’s magnetic field than by the solar wind. Hubble Space Telescope images show that Saturn’s polar regions have aurorae simil ...
Slide 1
... • In the Asteroid Belt between Mars and Jupiter. • There are thousands of known and lots more discovered every year. • Ceres is the largest with a diameter of 974 km • All the asteroids put together would not even be half of the moons mass. http://upload.wikimedia.org/wikipedia/commons/f/f3/InnerSol ...
... • In the Asteroid Belt between Mars and Jupiter. • There are thousands of known and lots more discovered every year. • Ceres is the largest with a diameter of 974 km • All the asteroids put together would not even be half of the moons mass. http://upload.wikimedia.org/wikipedia/commons/f/f3/InnerSol ...
Jupiter: friend or foe An answer
... In his 1994 paper, Wetherill used MonteCarlo simulations of a population of bodies that initially occupied eccentric, low inclinations orbits with semi-major axes between 5 and 75 AU. Because Jupiter orbits at 5.2 AU, such a population is bound to be far more sensitive to the mass of Jupiter and Sat ...
... In his 1994 paper, Wetherill used MonteCarlo simulations of a population of bodies that initially occupied eccentric, low inclinations orbits with semi-major axes between 5 and 75 AU. Because Jupiter orbits at 5.2 AU, such a population is bound to be far more sensitive to the mass of Jupiter and Sat ...
Jupiter: friend or foe An answer
... In his 1994 paper, Wetherill used MonteCarlo simulations of a population of bodies that initially occupied eccentric, low inclinations orbits with semi-major axes between 5 and 75 AU. Because Jupiter orbits at 5.2 AU, such a population is bound to be far more sensitive to the mass of Jupiter and Sat ...
... In his 1994 paper, Wetherill used MonteCarlo simulations of a population of bodies that initially occupied eccentric, low inclinations orbits with semi-major axes between 5 and 75 AU. Because Jupiter orbits at 5.2 AU, such a population is bound to be far more sensitive to the mass of Jupiter and Sat ...
BIRTH OF CHRIST RECALCULATED Preliminary Considerations
... It thus seems highly probable that all in the Empire registered an oath of obedience and an approval of the Pater Patrae to Augustus at this time and that Quirinius had been sent to the East to conduct it. It is reasonable that a period of about a year was allowed for complete enrollment, thus begin ...
... It thus seems highly probable that all in the Empire registered an oath of obedience and an approval of the Pater Patrae to Augustus at this time and that Quirinius had been sent to the East to conduct it. It is reasonable that a period of about a year was allowed for complete enrollment, thus begin ...
CONTENTS OF THE SOLAR SYSTEM DATABASE
... they are shaped a little like potatoes. It takes Mars and its moons 687 Earth days to travel around the Sun. This means that the Martian year is little less than two of our years. Although Mars is smaller and colder than Earth, it is still quite similar to our planet. It has a thin atmosphere and po ...
... they are shaped a little like potatoes. It takes Mars and its moons 687 Earth days to travel around the Sun. This means that the Martian year is little less than two of our years. Although Mars is smaller and colder than Earth, it is still quite similar to our planet. It has a thin atmosphere and po ...
Orbital Perturbations of the Galilean Satellites During Planetary
... a planet with mass comparable to that of Uranus or Neptune on an orbit between the original orbits of Saturn and Uranus can significantly increase the success rate of instability simulations. This is because, more often than not at least one ice giant is ejected from the Solar System during the inst ...
... a planet with mass comparable to that of Uranus or Neptune on an orbit between the original orbits of Saturn and Uranus can significantly increase the success rate of instability simulations. This is because, more often than not at least one ice giant is ejected from the Solar System during the inst ...
Chapter 8 Moons, Rings, and Plutoids
... • Ganymede is the largest moon in the solar system—larger than Pluto and Mercury. • It has a history similar to Earth’s Moon, but with water ice instead of lunar rock. ...
... • Ganymede is the largest moon in the solar system—larger than Pluto and Mercury. • It has a history similar to Earth’s Moon, but with water ice instead of lunar rock. ...
Neptune - Midland ISD
... The time is takes for Neptune to circle around the sun once (orbital period) is 165 years. The length of their average day is 16 hours and 6 minutes. ...
... The time is takes for Neptune to circle around the sun once (orbital period) is 165 years. The length of their average day is 16 hours and 6 minutes. ...
PDF only - at www.arxiv.org.
... Lavison 2005] it has been shown that our planetary system, with initial quasicircular, coplanar orbits, would have evolved to the current orbital configurations provided Jupiter and Saturn crossed the 1:2 mean motion resonance (MMR). When the ratio of the orbital periods of Jupiter and Saturn is 1:2 ...
... Lavison 2005] it has been shown that our planetary system, with initial quasicircular, coplanar orbits, would have evolved to the current orbital configurations provided Jupiter and Saturn crossed the 1:2 mean motion resonance (MMR). When the ratio of the orbital periods of Jupiter and Saturn is 1:2 ...
Sample pages 2 PDF
... formula did work in the predicting of a planet in between the orbits of Mars and Jupiter—quickly turned to puzzlement, as other bodies in the then unknown Asteroid Belt were found. Between 1801 and 1808, astronomers tracked down a further three asteroids in the region of space where Ceres had been l ...
... formula did work in the predicting of a planet in between the orbits of Mars and Jupiter—quickly turned to puzzlement, as other bodies in the then unknown Asteroid Belt were found. Between 1801 and 1808, astronomers tracked down a further three asteroids in the region of space where Ceres had been l ...
orbital perturbations of the galilean satellites during planetary
... opted to use the current orbits of Io, Europa, and Ganymede from JPL Horizons6 at ten slightly different epochs. This choice implies that our initial satellite configurations have the inner three moons in the Laplace resonance, and we can test, among other things, how the Laplace resonance is affect ...
... opted to use the current orbits of Io, Europa, and Ganymede from JPL Horizons6 at ten slightly different epochs. This choice implies that our initial satellite configurations have the inner three moons in the Laplace resonance, and we can test, among other things, how the Laplace resonance is affect ...
4 The Outer Planets
... planets. Figure 17 provides information about these planets. Like the sun, the gas giants are composed mainly of hydrogen and helium. Because they are so massive, the gas giants exert a much stronger gravitational force than the terrestrial planets. Gravity keeps the giant planets’ gases from escapi ...
... planets. Figure 17 provides information about these planets. Like the sun, the gas giants are composed mainly of hydrogen and helium. Because they are so massive, the gas giants exert a much stronger gravitational force than the terrestrial planets. Gravity keeps the giant planets’ gases from escapi ...
VARIABILiTY IN THE OUTER PLANET AURORAE
... Distribution of the UV Aurora! Ovals. The only direct mapping of the UV auroral ovals has been from Voyager UVS observations of the night atmosphere as Voyager 2 departed the system, during which the aperture was scanned north/south across Jupiter until auroral emission was detected near each pole / ...
... Distribution of the UV Aurora! Ovals. The only direct mapping of the UV auroral ovals has been from Voyager UVS observations of the night atmosphere as Voyager 2 departed the system, during which the aperture was scanned north/south across Jupiter until auroral emission was detected near each pole / ...
Chapter 12 Asteroids Comets and D arf Asteroids, Comets, and
... will refreeze onto the surface as Pluto’s orbit takes it farther from the Sun. Sun ...
... will refreeze onto the surface as Pluto’s orbit takes it farther from the Sun. Sun ...
No Slide Title
... Storeoscopic view of comet Wild-2 captured by Stardust http://stardust.jpl.nasa.gov/index.html and in particular: http://stardust.jpl.nasa.gov/mission/index.html ...
... Storeoscopic view of comet Wild-2 captured by Stardust http://stardust.jpl.nasa.gov/index.html and in particular: http://stardust.jpl.nasa.gov/mission/index.html ...
Clearing stage: Oort cloud formation
... Storeoscopic view of comet Wild-2 captured by Stardust http://stardust.jpl.nasa.gov/index.html and in particular: http://stardust.jpl.nasa.gov/mission/index.html ...
... Storeoscopic view of comet Wild-2 captured by Stardust http://stardust.jpl.nasa.gov/index.html and in particular: http://stardust.jpl.nasa.gov/mission/index.html ...
The Reception of the Copernican Revolution
... compromise quickly attracted the support of most astronomers, philosophers, and theologians of the time, whether Catholic or Reformed. In 1610, Galileo, who had previously not dared teach Copernican astronomy, published Siderius nuncius (Starry Messenger), in which he revealed the results of his obs ...
... compromise quickly attracted the support of most astronomers, philosophers, and theologians of the time, whether Catholic or Reformed. In 1610, Galileo, who had previously not dared teach Copernican astronomy, published Siderius nuncius (Starry Messenger), in which he revealed the results of his obs ...
Chapter 8 Jovian Planet Systems
... • Because Mercury is a small planet! • So moons that are the same size or smaller than Mercury should be geologically dead, too • But they’re not… ...
... • Because Mercury is a small planet! • So moons that are the same size or smaller than Mercury should be geologically dead, too • But they’re not… ...
Galileo`s The Starry Messenger
... Great indeed are the things which in this brief treatise I propose for observation and consideration by all students of nature. I say great, because of the excellence of the subject itself, the entirely unexpected and novel character of these things, and finally because of the instrument by means of ...
... Great indeed are the things which in this brief treatise I propose for observation and consideration by all students of nature. I say great, because of the excellence of the subject itself, the entirely unexpected and novel character of these things, and finally because of the instrument by means of ...
Galileo
... Great indeed are the things which in this brief treatise I propose for observation and consideration by all students of nature. I say great, because of the excellence of the subject itself, the entirely unexpected and novel character of these things, and finally because of the instrument by means of ...
... Great indeed are the things which in this brief treatise I propose for observation and consideration by all students of nature. I say great, because of the excellence of the subject itself, the entirely unexpected and novel character of these things, and finally because of the instrument by means of ...
Voyager Thorugh Space - Open Court Resources.com
... • ..information about the outer planets, but because of the enormous distance, it would take 30 years or more to reach Neptune. • In 1977, Voyager 2 made a “grand tour” of Jupiter, Saturn, Uranus, and Neptune. ...
... • ..information about the outer planets, but because of the enormous distance, it would take 30 years or more to reach Neptune. • In 1977, Voyager 2 made a “grand tour” of Jupiter, Saturn, Uranus, and Neptune. ...
Seventh planet - Copeland Science Online
... Greek deity of the Heavens, earliest supreme god. Father of Cronus (Saturn) Discovered by William Herschel while searching the sky on March 13, 1781. Seen many times before but ignored as simply another star. Spacecraft Visiting Uranus Voyager 2, Jan 24 1986, flyby Discovered 11 small moons in addit ...
... Greek deity of the Heavens, earliest supreme god. Father of Cronus (Saturn) Discovered by William Herschel while searching the sky on March 13, 1781. Seen many times before but ignored as simply another star. Spacecraft Visiting Uranus Voyager 2, Jan 24 1986, flyby Discovered 11 small moons in addit ...
Scientific Justification
... One prior attempt has been made to discover Jovian auroral variations tied to solar wind conditions during the approach of Cassini to Jupiter in late 2000. Continuous Cassini measurements of the solar wind were not possible, due to competing measurements requiring a different spacecraft orientation ...
... One prior attempt has been made to discover Jovian auroral variations tied to solar wind conditions during the approach of Cassini to Jupiter in late 2000. Continuous Cassini measurements of the solar wind were not possible, due to competing measurements requiring a different spacecraft orientation ...
Exploration of Io
The exploration of Io, Jupiter's third-largest moon, began with its discovery in 1610 and continues today with Earth-based observations and visits by spacecraft to the Jupiter system. Italian astronomer Galileo Galilei was the first to record an observation of Io on January 8, 1610, though Simon Marius may have also observed Io at around the same time. During the 17th century, observations of Io and the other Galilean satellites helped with the measurement of longitude by map makers and surveyors, with validation of Kepler's Third Law of planetary motion, and with measurement of the speed of light. Based on ephemerides produced by astronomer Giovanni Cassini and others, Pierre-Simon Laplace created a mathematical theory to explain the resonant orbits of three of Jupiter's moons, Io, Europa, and Ganymede. This resonance was later found to have a profound effect on the geologies of these moons. Improved telescope technology in the late 19th and 20th centuries allowed astronomers to resolve large-scale surface features on Io as well as to estimate its diameter and mass.The advent of unmanned spaceflight in the 1950s and 1960s provided an opportunity to observe Io up-close. In the 1960s the moon's effect on Jupiter's magnetic field was discovered. The flybys of the two Pioneer probes, Pioneer 10 and 11 in 1973 and 1974, provided the first accurate measurement of Io's mass and size. Data from the Pioneers also revealed an intense belt of radiation near Io and suggested the presence of an atmosphere. In 1979, the two Voyager spacecraft flew through the Jupiter system. Voyager 1, during its encounter in March 1979, observed active volcanism on Io for the first time and mapped its surface in great detail, particularly the side that faces Jupiter. The Voyagers observed the Io plasma torus and Io's sulfur dioxide (SO2) atmosphere for the first time. NASA launched the Galileo spacecraft in 1989, which entered Jupiter's orbit in December 1995. Galileo allowed detailed study of both the planet and its satellites, including six flybys of Io between late 1999 and early 2002 that provided high-resolution images and spectra of Io's surface, confirming the presence of high-temperature silicate volcanism on Io. Distant observations by Galileo allowed planetary scientists to study changes on the surface that resulted from the moon's active volcanism.Following Galileo and a distant encounter by the Pluto-bound New Horizons spacecraft in 2007, NASA and the European Space Agency (ESA) made plans to return to the Jupiter system and Io. In 2009, NASA approved a plan to send an orbiter to Europa called the Jupiter Europa Orbiter as part of a joint program with ESA called the Europa/Jupiter System Mission. The ESA component of the project was the Jupiter Ganymede Orbiter. However, the EJSM mission collaboration was cancelled. ESA is continuing with its initiative under the name Jupiter Icy Moon Explorer (JUICE) to explore Ganymede, Europa, and Callisto, without plans to investigate Io at all. The proposed NASA Discovery mission Io Volcano Observer, currently going through a competitive process to be selected, would explore Io as its primary mission. In the meantime, Io continues to be observed by the Hubble Space Telescope as well as by Earth-based astronomers using improved telescopes such as Keck and the European Southern Observatory, that use new technologies such as adaptive optics.