Planetary System Formation, Extrasolar Planets, Life in the Universe
... Most popular explanation for the existence of hot Jupiters is orbital migration: • Giant planets form at large radii within the protoplanetary disk (several au) • Lose energy and angular momentum • Migrate to present orbits closer to the star Suggested mechanisms for orbital migration: Gravitational ...
... Most popular explanation for the existence of hot Jupiters is orbital migration: • Giant planets form at large radii within the protoplanetary disk (several au) • Lose energy and angular momentum • Migrate to present orbits closer to the star Suggested mechanisms for orbital migration: Gravitational ...
Ancient Astronomy
... empirical laws governing the motion of orbiting celestial objects. – 1st Law: Each planet moves around the Sun in an orbit that is an ellipse, with the Sun at one focus of the ellipse. – 2nd Law: The straight line joining a planet and the Sun sweeps out equal areas in equal intervals of time. – 3rd ...
... empirical laws governing the motion of orbiting celestial objects. – 1st Law: Each planet moves around the Sun in an orbit that is an ellipse, with the Sun at one focus of the ellipse. – 2nd Law: The straight line joining a planet and the Sun sweeps out equal areas in equal intervals of time. – 3rd ...
Final Study Guide Questions Earth Science Spring 2016 Mr. Traeger 1
... The following questions are similar to questions that will be asked on the final exam. The topics are in the order in which we covered them. Please go through your book and answer them as a way to review for the final. You will earn 20 points of test credit on top of your final exam grade if you ans ...
... The following questions are similar to questions that will be asked on the final exam. The topics are in the order in which we covered them. Please go through your book and answer them as a way to review for the final. You will earn 20 points of test credit on top of your final exam grade if you ans ...
Impossible planets.
... orbiting a sunlike star. The trouble was, nobody had ordered, or even imagined, a planet quite like the object circling 51 Pegasi, a star lying 50 light-years from Earth in the constellation Pegasus. For one thing, it is huge -- about half the mass of Jupiter. Yet despite this bulk, it orbits only s ...
... orbiting a sunlike star. The trouble was, nobody had ordered, or even imagined, a planet quite like the object circling 51 Pegasi, a star lying 50 light-years from Earth in the constellation Pegasus. For one thing, it is huge -- about half the mass of Jupiter. Yet despite this bulk, it orbits only s ...
HomeWork #2
... 2. he placed the planets on epicycles, the centers of which followed orbits around the Sun. ...
... 2. he placed the planets on epicycles, the centers of which followed orbits around the Sun. ...
Research Essay “On the Origin of the Solar System”
... philosopher Immanuel Kant. His idea was that the Solar System began as a cloud of scattered particles and that gravitational attraction of the particles caused them to collide and bond. As these groups became larger they coalesced more rapidly, ultimately forming the planets. This early model doesn’ ...
... philosopher Immanuel Kant. His idea was that the Solar System began as a cloud of scattered particles and that gravitational attraction of the particles caused them to collide and bond. As these groups became larger they coalesced more rapidly, ultimately forming the planets. This early model doesn’ ...
Sample pages 1 PDF
... Angular diameter—the apparent size of a celestial object, measured in degrees, minutes, and/or seconds, as seen from Earth. OK, let’s define the three words in that sentence. A degree is 1/360 of a circle. Said another way, a circle contains 360°. A minute (short for minute of arc or arcminute) is 1 ...
... Angular diameter—the apparent size of a celestial object, measured in degrees, minutes, and/or seconds, as seen from Earth. OK, let’s define the three words in that sentence. A degree is 1/360 of a circle. Said another way, a circle contains 360°. A minute (short for minute of arc or arcminute) is 1 ...
Intro To The Solar System
... Earth has diameter 0.3 mm. Sun: ~ size of a small plum. Mercury, Venus, Earth, Mars: ~ size of a grain of salt. Jupiter: ~ size of an apple seed. Saturn: ~ slightly smaller than Jupiter’s “apple seed”. ...
... Earth has diameter 0.3 mm. Sun: ~ size of a small plum. Mercury, Venus, Earth, Mars: ~ size of a grain of salt. Jupiter: ~ size of an apple seed. Saturn: ~ slightly smaller than Jupiter’s “apple seed”. ...
Ellipses, Parallax, and Retrograde Motion – Study Guide
... 8. The greater the eccentricity, the more _oval (or flattened)_ the ellipse. 9. Kepler’s 1st Law: All planets orbit in _ellipses__(shape). 10. Kepler’s 2nd Law: The closer a planet is to the sun, the _faster_ it moves. 11. Kepler’s 3rd Law: The closer a planet is to the sun, the _shorter__ its year ...
... 8. The greater the eccentricity, the more _oval (or flattened)_ the ellipse. 9. Kepler’s 1st Law: All planets orbit in _ellipses__(shape). 10. Kepler’s 2nd Law: The closer a planet is to the sun, the _faster_ it moves. 11. Kepler’s 3rd Law: The closer a planet is to the sun, the _shorter__ its year ...
Solar System`s Age - Empyrean Quest Publishers
... • Any model of solar system origins must explain the present-day Sun and planets 1. The terrestrial planets, which are composed primarily of rocky substances, are relatively small, while the Jovian planets, which are composed primarily of hydrogen and helium, are relatively large 2. All of the plane ...
... • Any model of solar system origins must explain the present-day Sun and planets 1. The terrestrial planets, which are composed primarily of rocky substances, are relatively small, while the Jovian planets, which are composed primarily of hydrogen and helium, are relatively large 2. All of the plane ...
Exoplanets - An ESO/OPTICON/IAU summer school on modern
... Brown dwarfs: between 13-80 Jupiter-masses (only deuterium-fusion) Planetary bodies: below 13 Jupiter-masses (no natural fusion) These mass limits depend slightly on the chemical composition. But: (i) no definition from giant planets, dwarf planets, asteroids, meteors etc. in this astrophysical defi ...
... Brown dwarfs: between 13-80 Jupiter-masses (only deuterium-fusion) Planetary bodies: below 13 Jupiter-masses (no natural fusion) These mass limits depend slightly on the chemical composition. But: (i) no definition from giant planets, dwarf planets, asteroids, meteors etc. in this astrophysical defi ...
Gravity - Alvinisd.net
... 4 Just like the attraction between you and Earth and between the Moon and Earth, the Sun has a gravitational attraction with Earth that results in Earth orbiting the Sun. The Sun’s attraction is so strong that all objects in the solar system orbit around this medium-sized star. If the Sun’s gravitat ...
... 4 Just like the attraction between you and Earth and between the Moon and Earth, the Sun has a gravitational attraction with Earth that results in Earth orbiting the Sun. The Sun’s attraction is so strong that all objects in the solar system orbit around this medium-sized star. If the Sun’s gravitat ...
Quiz Lecture 3
... Which one of the following assumptions do astronomers use as they attempt to explain the universe? a. Effects can be unrelated to any cause. b. The force of gravity is caused by objects rotating or spinning. c. A object can exhibit a change in motion without a force being applied to it. d. Scientifi ...
... Which one of the following assumptions do astronomers use as they attempt to explain the universe? a. Effects can be unrelated to any cause. b. The force of gravity is caused by objects rotating or spinning. c. A object can exhibit a change in motion without a force being applied to it. d. Scientifi ...
power_point_slides
... conditions? • Near a moderate-sized, stable, third-generation star neither too close nor too far from the galactic center. • A planet like Earth, in the “habitable zone” of the star for the right temperature range, big enough to have an atmosphere and plate tectonics, not so big as to be a “gas gian ...
... conditions? • Near a moderate-sized, stable, third-generation star neither too close nor too far from the galactic center. • A planet like Earth, in the “habitable zone” of the star for the right temperature range, big enough to have an atmosphere and plate tectonics, not so big as to be a “gas gian ...
S LAR SYSTEM - Fleet Science Center
... Gravity – The force of attraction between all masses in the universe; especially the attraction of the earth's mass for bodies near its surface. Lunar – Relating to the Moon. Orbit – The path of one body around another. Planet – A major object which orbits around a star. Revolution – The movement of ...
... Gravity – The force of attraction between all masses in the universe; especially the attraction of the earth's mass for bodies near its surface. Lunar – Relating to the Moon. Orbit – The path of one body around another. Planet – A major object which orbits around a star. Revolution – The movement of ...
fall_2000_final
... D. hydrogen absorption lines. E. hydrogen emission lines. 43. The “M” in M31 (the Andromeda Galaxy) refers to A. Hubble’s classification for this galaxy. B. the galaxy’s spectral type. C. modulus—meaning the distance modulus is 31. D. the Messier Catalog. E. metallic content. 44. The core of an agin ...
... D. hydrogen absorption lines. E. hydrogen emission lines. 43. The “M” in M31 (the Andromeda Galaxy) refers to A. Hubble’s classification for this galaxy. B. the galaxy’s spectral type. C. modulus—meaning the distance modulus is 31. D. the Messier Catalog. E. metallic content. 44. The core of an agin ...
Introduction to cosmology I
... Heroic age followed by decline (Should have been Aristarchus - Copernicus, Archimedes-Galileo) ...
... Heroic age followed by decline (Should have been Aristarchus - Copernicus, Archimedes-Galileo) ...
1 2 3 4 5 6 Orbital Distance (AU) Orbital Period (Years) 1 2 3 4 5 6 7
... planet to orbit a star (orbital period) and how far away that planet is from the star (orbital distance). We will start by investigating an imaginary planetary system that has an average star like the Sun at the center. A huge Jupiter-like planet named Moto orbits close to the star, while a small Ea ...
... planet to orbit a star (orbital period) and how far away that planet is from the star (orbital distance). We will start by investigating an imaginary planetary system that has an average star like the Sun at the center. A huge Jupiter-like planet named Moto orbits close to the star, while a small Ea ...
Astro 4 Practice Test 1
... 19. How could a person in ancient times have proven that the stars are farther away than the Moon? a. The Moon sometimes passes in front of stars, covering them up. b. The apparent sizes of the stars are much smaller than the Moon. c. Some of the bright stars occasionally appear to pass in front of ...
... 19. How could a person in ancient times have proven that the stars are farther away than the Moon? a. The Moon sometimes passes in front of stars, covering them up. b. The apparent sizes of the stars are much smaller than the Moon. c. Some of the bright stars occasionally appear to pass in front of ...
Mass
... The current nebular condensation theory of the formation of the planets in our solar system DOES NOT explain which of the following? A The abundance of chemical elements in the Solar System. B The reason that heavier elements are found mostly in the Terrestrial Planets. C The reason that the Jovian ...
... The current nebular condensation theory of the formation of the planets in our solar system DOES NOT explain which of the following? A The abundance of chemical elements in the Solar System. B The reason that heavier elements are found mostly in the Terrestrial Planets. C The reason that the Jovian ...
Universe and Solar System
... Situation: The first space probe designed to reach stars outside our solar system, and eventually, the center of our galaxy, is to be announced by the President. The probe will study our solar system. Because the scientists who study those images will be from your generation, the President plans to ...
... Situation: The first space probe designed to reach stars outside our solar system, and eventually, the center of our galaxy, is to be announced by the President. The probe will study our solar system. Because the scientists who study those images will be from your generation, the President plans to ...
Document
... temperature of the stellar surface. – The total amount of radiation received by a planet would depend on the position of a planet with respect to a star. • The stellar surface temperature also determines the spectrum (the wavelengths at which the star mostly emits) of the received radiation by the p ...
... temperature of the stellar surface. – The total amount of radiation received by a planet would depend on the position of a planet with respect to a star. • The stellar surface temperature also determines the spectrum (the wavelengths at which the star mostly emits) of the received radiation by the p ...
How to Become a Planet Hunter-Careers in
... – Eccentric orbits are common: scattering? – Many multiple systems of giant planets are known What we don’t know – Existence of terrestrial planets Are there low-mass planets in the ‘habitable ...
... – Eccentric orbits are common: scattering? – Many multiple systems of giant planets are known What we don’t know – Existence of terrestrial planets Are there low-mass planets in the ‘habitable ...
in the Solar System!
... The Sun is a Star not a Planet. The Asteroid Belt divides the Inner and ...
... The Sun is a Star not a Planet. The Asteroid Belt divides the Inner and ...
NATS1311_112008_bw
... Most of them collided with the newly-formed planets and moons during the first few 100 million years of the Solar System. This was the heavy bombardment period. ...
... Most of them collided with the newly-formed planets and moons during the first few 100 million years of the Solar System. This was the heavy bombardment period. ...
Satellite system (astronomy)
A satellite system is a set of gravitationally bound objects in orbit around a planetary mass object or minor planet. Generally speaking, it is a set of natural satellites (moons), although such systems may also consist of bodies such as circumplanetary disks, ring systems, moonlets, minor-planet moons and artificial satellites any of which may themselves have satellite systems of their own. Some satellite systems have complex interactions with both their parent and other moons, including magnetic, tidal, atmospheric and orbital interactions such as orbital resonances and libration. Individually major satellite objects are designated in Roman numerals. Satellite systems are referred to either by the possessive adjectives of their primary (e.g. ""Jovian system""), or less commonly by the name of their primary (e.g. ""Jupiter system""). Where only one satellite is known, or it is a binary orbiting a common centre of gravity, it may be referred to using the hyphenated names of the primary and major satellite (e.g. the ""Earth-Moon system"").Many Solar System objects are known to possess satellite systems, though their origin is still unclear. Notable examples include the largest satellite system, the Jovian system, with 67 known moons (including the large Galilean moons) and the Saturnian System with 62 known moons (and the most visible ring system in the Solar System). Both satellite systems are large and diverse. In fact all of the giant planets of the Solar System possess large satellite systems as well as planetary rings, and it is inferred that this is a general pattern. Several objects farther from the Sun also have satellite systems consisting of multiple moons, including the complex Plutonian system where multiple objects orbit a common center of mass, as well as many asteroids and plutinos. Apart from the Earth-Moon system and Mars' system of two tiny natural satellites, the other terrestrial planets are generally not considered satellite systems, although some have been orbited by artificial satellites originating from Earth.Little is known of satellite systems beyond the Solar System, although it is inferred that natural satellites are common. J1407b is an example of an extrasolar satellite system. It is also theorised that Rogue planets ejected from their planetary system could retain a system of satellites.