Programme 16
... particular relevance for understanding the formation process, the early phases and the subsequent dynamical, physical and chemical evolution of the Solar System. The lack of important modifications since their formation can give crucial clues on the status of the early solar nebula, and on the proce ...
... particular relevance for understanding the formation process, the early phases and the subsequent dynamical, physical and chemical evolution of the Solar System. The lack of important modifications since their formation can give crucial clues on the status of the early solar nebula, and on the proce ...
23.4 Minor Members of the Solar System
... nucleus of Halley’s comet and obtained the first images of this elusive structure. We now know that the surface is potato shaped, 16 kilometers by 8 kilometers. The surface is irregular and full of crater pits. Gases and dust that vaporize from the nucleus form the coma and tail appear to gush from ...
... nucleus of Halley’s comet and obtained the first images of this elusive structure. We now know that the surface is potato shaped, 16 kilometers by 8 kilometers. The surface is irregular and full of crater pits. Gases and dust that vaporize from the nucleus form the coma and tail appear to gush from ...
Star and Planet Formation - Homepages of UvA/FNWI staff
... 1. If the Earth rotates around the Sun, birds should actually stay behind because of the movement of the Earth on its orbit. 2. If the Earth rotates around its axis (as required to explain day and night), things should fly off the spinning planet. 3. If the Earth rotates around the Sun, we should ob ...
... 1. If the Earth rotates around the Sun, birds should actually stay behind because of the movement of the Earth on its orbit. 2. If the Earth rotates around its axis (as required to explain day and night), things should fly off the spinning planet. 3. If the Earth rotates around the Sun, we should ob ...
Document
... How? Let us assume that they send space missions to 10 habitable planets and that each of the 10 colonies, when ready, sends missions to 10 new planets, and so on… It can take a very long time, but it doesn’t matter Let us assume that it takes 100 000 years to reach a new planet, settle, build a new ...
... How? Let us assume that they send space missions to 10 habitable planets and that each of the 10 colonies, when ready, sends missions to 10 new planets, and so on… It can take a very long time, but it doesn’t matter Let us assume that it takes 100 000 years to reach a new planet, settle, build a new ...
award
... Which of the following observations does not inform astronomers about how the Solar System must have formed. All known ages for Solar System bodies are 4.6 billion years or younger. The Solar System is flat in structure. The farther out planets take longer to complete an orbit about the Sun. The inn ...
... Which of the following observations does not inform astronomers about how the Solar System must have formed. All known ages for Solar System bodies are 4.6 billion years or younger. The Solar System is flat in structure. The farther out planets take longer to complete an orbit about the Sun. The inn ...
View/Open - SUNY DSpace
... away and with this information he came up with the three laws of planetary motion: 1. Planets move in elliptical movements around the sun, 2. Planets closer to the sun will move faster, and 3. Planets farther away from the sun will move slower than the closer ones (“A Comprehensive Gide to the Unive ...
... away and with this information he came up with the three laws of planetary motion: 1. Planets move in elliptical movements around the sun, 2. Planets closer to the sun will move faster, and 3. Planets farther away from the sun will move slower than the closer ones (“A Comprehensive Gide to the Unive ...
Document
... 40. What is one advantage of constructing a model like the one in the above picture? A. To test the effects of the sun’s gravity on each planet B. To identify and compare the order of the planets in the solar system C. To show the distance of each planet from other stars D. To form a hypothesis of ...
... 40. What is one advantage of constructing a model like the one in the above picture? A. To test the effects of the sun’s gravity on each planet B. To identify and compare the order of the planets in the solar system C. To show the distance of each planet from other stars D. To form a hypothesis of ...
Space BootCamp3.8D_AC
... 40. What is one advantage of constructing a model like the one in the above picture? A. To test the effects of the sun’s gravity on each planet B. To identify and compare the order of the planets in the solar system C. To show the distance of each planet from other stars D. To form a hypothesis of ...
... 40. What is one advantage of constructing a model like the one in the above picture? A. To test the effects of the sun’s gravity on each planet B. To identify and compare the order of the planets in the solar system C. To show the distance of each planet from other stars D. To form a hypothesis of ...
Probing the Atmospheres of Exoplanets
... external solar systems has been truly remarkable. (Note: both “exoplanet” and “extrasolar planet” are used interchangeably in this article.) By early 2009, more than 340 planets had been found orbiting other stars—almost all of them discovered indirectly by ground-based telescopes as a result of the ...
... external solar systems has been truly remarkable. (Note: both “exoplanet” and “extrasolar planet” are used interchangeably in this article.) By early 2009, more than 340 planets had been found orbiting other stars—almost all of them discovered indirectly by ground-based telescopes as a result of the ...
AyC10 Fall 2007: Midterm 2 Review Sheet
... Why is Pluto no longer a planet, according to the International Astronomical Union’s definition? Pluto meets two of the three criteria in the IAU's 2006 definition of a planet: it does orbit the Sun, and it is spherical. However, it does not meet the criterion that it must clear other objects (excep ...
... Why is Pluto no longer a planet, according to the International Astronomical Union’s definition? Pluto meets two of the three criteria in the IAU's 2006 definition of a planet: it does orbit the Sun, and it is spherical. However, it does not meet the criterion that it must clear other objects (excep ...
Extra-solar planets
... In 2011, the Kepler team announced the first discovery of a circumbinary planet – a planet orbiting two stars. The two orbiting stars regularly eclipse each other; the planet also transits, each star, and Kepler data from these planetary transits allowed the size, density and mass of the planet to ...
... In 2011, the Kepler team announced the first discovery of a circumbinary planet – a planet orbiting two stars. The two orbiting stars regularly eclipse each other; the planet also transits, each star, and Kepler data from these planetary transits allowed the size, density and mass of the planet to ...
Article Reference - Archive ouverte UNIGE
... in Sutherland (South Africa), by a single camera, between 2010 May 15 and 2010 September 26 (Fig. 2b). The Hunter algorithm (Collier Cameron et al. 2007) found a period at 3.07 days and uncovered a transit-like signal from five partial events, with a large depth that nevertheless corresponds to a pl ...
... in Sutherland (South Africa), by a single camera, between 2010 May 15 and 2010 September 26 (Fig. 2b). The Hunter algorithm (Collier Cameron et al. 2007) found a period at 3.07 days and uncovered a transit-like signal from five partial events, with a large depth that nevertheless corresponds to a pl ...
Giant planet formation
... * Aerodynamic drag, which is important for the orbital evolution of meter-sized planetesimals, is negligible for planetary masses ...
... * Aerodynamic drag, which is important for the orbital evolution of meter-sized planetesimals, is negligible for planetary masses ...
Comet - Physics
... • Usually they will start with an orbit which takes them to the gas giant region. Here the objects will be called Centaurs. • Eventually these Centaurs will have a close encounter with a gas giant (don’t worry Jupiter, I ...
... • Usually they will start with an orbit which takes them to the gas giant region. Here the objects will be called Centaurs. • Eventually these Centaurs will have a close encounter with a gas giant (don’t worry Jupiter, I ...
The Search for Extrasolar Planets
... iodine-cell spectrographs6, and the Geneva group, using fibre-fed spectrographs7. Those two methods were the major independent technological breakthroughs that enabled precise radial velocities to be measured. Currently, the two techniques of radial-velocity and photometric-transit measurements (see ...
... iodine-cell spectrographs6, and the Geneva group, using fibre-fed spectrographs7. Those two methods were the major independent technological breakthroughs that enabled precise radial velocities to be measured. Currently, the two techniques of radial-velocity and photometric-transit measurements (see ...
The History of Astronomy
... Earth “laps” slower-moving outer planets – they appear to loop Inner planets speed between us & sun one way, then seem to reverse along far side Check out neat Venus/Earth dance…(but it’s upside down!) ...
... Earth “laps” slower-moving outer planets – they appear to loop Inner planets speed between us & sun one way, then seem to reverse along far side Check out neat Venus/Earth dance…(but it’s upside down!) ...
ph709-14
... star HD 209458 was shown to indicate the presence of a large exoplanet in transit across its surface from the perspective of Earth (1.7% dimming). Subsequent spectroscopic studies with the Hubble Space Telescope have even indicated that the exoplanet's atmosphere must have sodium vapor in it. The pl ...
... star HD 209458 was shown to indicate the presence of a large exoplanet in transit across its surface from the perspective of Earth (1.7% dimming). Subsequent spectroscopic studies with the Hubble Space Telescope have even indicated that the exoplanet's atmosphere must have sodium vapor in it. The pl ...
15.6 Planets Beyond the Solar System
... Results so far (nearly all from radial velocity method) Nearly all extrasolar planets have (so far) been discovered by radial velocity method. Why? Because they are mostly planets orbiting close to their parent star, so moving fast, just what Doppler effect is sensitive to. More than 300 extras ...
... Results so far (nearly all from radial velocity method) Nearly all extrasolar planets have (so far) been discovered by radial velocity method. Why? Because they are mostly planets orbiting close to their parent star, so moving fast, just what Doppler effect is sensitive to. More than 300 extras ...
Solar System: Small Bodies
... Many asteroids, once called minor planets, are chunks of rock with odd shapes. They are too small to have been rounded into spheres by __________. Other asteroids are nickel steel. At least a few other asteroids are cores of dead comets. Main belt asteroids are made of primitive material from the ea ...
... Many asteroids, once called minor planets, are chunks of rock with odd shapes. They are too small to have been rounded into spheres by __________. Other asteroids are nickel steel. At least a few other asteroids are cores of dead comets. Main belt asteroids are made of primitive material from the ea ...
Space (Part 1)
... has cleared the area around its orbit of objects.” This photograph shows Pluto and its moon, Charon. Pluto’s orbit is surrounded by smaller objects which have not been cleared by its gravitational field. Pluto and the other ‘smaller’ planet-like objects such as Eris and Ceres have now been reclassif ...
... has cleared the area around its orbit of objects.” This photograph shows Pluto and its moon, Charon. Pluto’s orbit is surrounded by smaller objects which have not been cleared by its gravitational field. Pluto and the other ‘smaller’ planet-like objects such as Eris and Ceres have now been reclassif ...
The Solar System
... Only Mercury and Venus do not have a moon or (natural) satellite There are more than 100 satellites known today More are being discovered on a regular basis ...
... Only Mercury and Venus do not have a moon or (natural) satellite There are more than 100 satellites known today More are being discovered on a regular basis ...
Planets beyond Neptune
Following the discovery of the planet Neptune in 1846, there was considerable speculation that another planet might exist beyond its orbit. The search began in the mid-19th century and culminated at the start of the 20th with Percival Lowell's quest for Planet X. Lowell proposed the Planet X hypothesis to explain apparent discrepancies in the orbits of the giant planets, particularly Uranus and Neptune, speculating that the gravity of a large unseen ninth planet could have perturbed Uranus enough to account for the irregularities.Clyde Tombaugh's discovery of Pluto in 1930 appeared to validate Lowell's hypothesis, and Pluto was officially named the ninth planet. In 1978, Pluto was conclusively determined to be too small for its gravity to affect the giant planets, resulting in a brief search for a tenth planet. The search was largely abandoned in the early 1990s, when a study of measurements made by the Voyager 2 spacecraft found that the irregularities observed in Uranus's orbit were due to a slight overestimation of Neptune's mass. After 1992, the discovery of numerous small icy objects with similar or even wider orbits than Pluto led to a debate over whether Pluto should remain a planet, or whether it and its neighbours should, like the asteroids, be given their own separate classification. Although a number of the larger members of this group were initially described as planets, in 2006 the International Astronomical Union reclassified Pluto and its largest neighbours as dwarf planets, leaving Neptune the farthest known planet in the Solar System.Today, the astronomical community widely agrees that Planet X, as originally envisioned, does not exist, but the concept of Planet X has been revived by a number of astronomers to explain other anomalies observed in the outer Solar System. In popular culture, and even among some astronomers, Planet X has become a stand-in term for any undiscovered planet in the outer Solar System, regardless of its relationship to Lowell's hypothesis. Other trans-Neptunian planets have also been suggested, based on different evidence. As of March 2014, observations with the WISE telescope have ruled out the possibility of a Saturn-sized object out to 10,000 AU, and a Jupiter-sized or larger object out to 26,000 AU.