Unit 3
... Eight planets have been discovered in our solar system. Mercury, Venus, Earth, and Mars are the planets closest to the Sun. They are called the inner planets. The inner planets are made up mostly of rock. The outer planets are Jupiter, Saturn, Uranus and Neptune. Jupiter, Saturn, Uranus, and Nep ...
... Eight planets have been discovered in our solar system. Mercury, Venus, Earth, and Mars are the planets closest to the Sun. They are called the inner planets. The inner planets are made up mostly of rock. The outer planets are Jupiter, Saturn, Uranus and Neptune. Jupiter, Saturn, Uranus, and Nep ...
THE UNIVERSE Celestial Bodies - Joy Senior Secondary School
... A planet (from Ancient Greek (astēr planētēs), meaning "wandering star") is an astronomical object orbiting a star or stellar remnant that is massive enough to be rounded by its own gravity, is not massive enough to cause thermonuclear fusion, and has cleared its neighboring region of planetesimals. ...
... A planet (from Ancient Greek (astēr planētēs), meaning "wandering star") is an astronomical object orbiting a star or stellar remnant that is massive enough to be rounded by its own gravity, is not massive enough to cause thermonuclear fusion, and has cleared its neighboring region of planetesimals. ...
PHYS 390 Lecture 6 - A tour of the planets 6 - 1 Lecture 6
... AU, astonishingly small. The mass distribution is (2008 data from http://exoplanet.eu) 0 - 2 Jupiter masses: 63% 2 - 4 Jupiter masses: 17% 4 - 6 Jupiter masses: 7% Issues: • The conventional model of our solar system argues that the terrestrial planets must lose their gaseous atmospheres - Jupiter-l ...
... AU, astonishingly small. The mass distribution is (2008 data from http://exoplanet.eu) 0 - 2 Jupiter masses: 63% 2 - 4 Jupiter masses: 17% 4 - 6 Jupiter masses: 7% Issues: • The conventional model of our solar system argues that the terrestrial planets must lose their gaseous atmospheres - Jupiter-l ...
Name: Pd: _____ Ast: _____ Solar System Study Guide Vocabulary
... 4) Sun - The star around which Earth and other planets revolve and from which they receive heat and light 5) Satellite - An object held in orbit by the gravity of a larger celestial body; for example a moon orbiting a planet or a man-made object orbiting Earth 6) Planets - Large celestial bodies tha ...
... 4) Sun - The star around which Earth and other planets revolve and from which they receive heat and light 5) Satellite - An object held in orbit by the gravity of a larger celestial body; for example a moon orbiting a planet or a man-made object orbiting Earth 6) Planets - Large celestial bodies tha ...
God, science and you – 2 The solar system
... • Most of the other planets have one or more satellites. Their satellites may be called moons also. ...
... • Most of the other planets have one or more satellites. Their satellites may be called moons also. ...
Quantum Well Electron Gain Structures and Infrared Detector Arrays
... • Probably supernova leftover bits • In 1995, Michel Mayor & Didier Queloz discover a planet around 51 Pegasi – how? ...
... • Probably supernova leftover bits • In 1995, Michel Mayor & Didier Queloz discover a planet around 51 Pegasi – how? ...
Extraterrestrial Life: Homework #5 Due, in class, Thursday April 10th
... 1) Briefly explain the radial velocity (or Doppler) method for detecting extrasolar planets. Why does this technique work best for finding massive planets, and those in short period orbits around their host stars? The method is described in lecture #19. It works best for massive planets, and for tho ...
... 1) Briefly explain the radial velocity (or Doppler) method for detecting extrasolar planets. Why does this technique work best for finding massive planets, and those in short period orbits around their host stars? The method is described in lecture #19. It works best for massive planets, and for tho ...
Chapter 3: the Sun
... This effect occurs when the gravitational field of a planet and its parent star act to magnify the light of a distant background star. The key advantage of gravitational microlensing is that it allows low mass (i.e. Earth-mass) planets to be detected using available ...
... This effect occurs when the gravitational field of a planet and its parent star act to magnify the light of a distant background star. The key advantage of gravitational microlensing is that it allows low mass (i.e. Earth-mass) planets to be detected using available ...
Which Objects Represent the Eight Planets in Our
... new, scientifically accepted definition of the word, “planet”. According to these scientists, a planet must have three characteristics: a) It must orbit a Star (Sun) b) It must have enough mass for its self-gravity to form it into a spherical shape c) It must have “cleared” nearby objects away from ...
... new, scientifically accepted definition of the word, “planet”. According to these scientists, a planet must have three characteristics: a) It must orbit a Star (Sun) b) It must have enough mass for its self-gravity to form it into a spherical shape c) It must have “cleared” nearby objects away from ...
Worksheet 1
... N. A region from which some comets come. The region extends from the orbit of Neptune to beyond Pluto O. A region between the orbits of Mars and Jupiter in which most of the Solar System’s asteroids are located P. A rocky planet similar to the Earth in size and structure Q. A vast region in which co ...
... N. A region from which some comets come. The region extends from the orbit of Neptune to beyond Pluto O. A region between the orbits of Mars and Jupiter in which most of the Solar System’s asteroids are located P. A rocky planet similar to the Earth in size and structure Q. A vast region in which co ...
Lecture 13
... position of the star changing • We can use the Doppler Technique to observe the effects of the star moving – Can figure out lots of properties of the orbit using physical laws ...
... position of the star changing • We can use the Doppler Technique to observe the effects of the star moving – Can figure out lots of properties of the orbit using physical laws ...
Homework #5 Chapter 3: Solar System Due
... then also attract hydrogen and helium, and the jovian planets grew to a large size. In the region of the inner solar nebula, temperatures were sufficiently high that time had to pass before the first rocky particles could condense and start the accretion process. There was less material to accrete b ...
... then also attract hydrogen and helium, and the jovian planets grew to a large size. In the region of the inner solar nebula, temperatures were sufficiently high that time had to pass before the first rocky particles could condense and start the accretion process. There was less material to accrete b ...
The Solar System
... Has rings that are made up of frozen gas, ice, & rock o Second Largest Planet o Yellow in Color o ...
... Has rings that are made up of frozen gas, ice, & rock o Second Largest Planet o Yellow in Color o ...
Astronomy Assignment #1
... The Radial Velocity Method can determine (1) the period of the planets orbit, (2) the semi-major axis of the planets orbit, (3) the eccentricity of the planet’s orbit, and (4) a minimum mass of the planet. 5. What exoplanet detection methods could detect Earth-mass or Earth-size exoplanets? Why woul ...
... The Radial Velocity Method can determine (1) the period of the planets orbit, (2) the semi-major axis of the planets orbit, (3) the eccentricity of the planet’s orbit, and (4) a minimum mass of the planet. 5. What exoplanet detection methods could detect Earth-mass or Earth-size exoplanets? Why woul ...
Size of Sun and Size of Planets
... Our Sun is the largest body in the Solar System but it is still considered an average-sized star. It is the only star in our solar system. The Sun is over 93 million miles away from the earth. It’s light takes about 8 minutes to reach the earth. Without its heat and light there would be no life on o ...
... Our Sun is the largest body in the Solar System but it is still considered an average-sized star. It is the only star in our solar system. The Sun is over 93 million miles away from the earth. It’s light takes about 8 minutes to reach the earth. Without its heat and light there would be no life on o ...
The formation of the Solar System I. Stellar context
... then water ice (<160 K) then ammonia and methane ice (<100K) ...
... then water ice (<160 K) then ammonia and methane ice (<100K) ...
Astronomy powerpoint
... • Also called Jovian Planets because they are like Jupiter. • The are large, gaseous, less dense, and have many moons. • Jovian planets include: Jupiter, Saturn, Uranus, and Neptune. ...
... • Also called Jovian Planets because they are like Jupiter. • The are large, gaseous, less dense, and have many moons. • Jovian planets include: Jupiter, Saturn, Uranus, and Neptune. ...
Lecture 27 (pdf from the powerpoint)
... •fp = the fraction of those stars which have planets •Estimated by Drake as 0.5. It is now known from modern planet searches that at least 10% of sunlike stars have planets, and the true proportion may be much higher, since only planets gas-giant size and larger can be detected with current technolo ...
... •fp = the fraction of those stars which have planets •Estimated by Drake as 0.5. It is now known from modern planet searches that at least 10% of sunlike stars have planets, and the true proportion may be much higher, since only planets gas-giant size and larger can be detected with current technolo ...
Inner and Outer Planets
... What’s in Our Solar System? • Our Solar System consists of a central star (the Sun), the eight planets orbiting the sun, dwarf planets, moons, asteroids, comets, meteors, interplanetary gas, dust, and all the “space” in between them. • The eight planets (and Pluto) of the Solar System are named for ...
... What’s in Our Solar System? • Our Solar System consists of a central star (the Sun), the eight planets orbiting the sun, dwarf planets, moons, asteroids, comets, meteors, interplanetary gas, dust, and all the “space” in between them. • The eight planets (and Pluto) of the Solar System are named for ...
Planets beyond the solar system
... Extrasolar planets to date • First extrasolar planet was discovered around a neutron star in 1991 • First extrasolar planet orbiting a normal star was found in 1995 by Michel Mayor and Didier Queloz of the Geneva Observatory in Switzerland orbiting the star 51 Pegasi • 126 planets have been discov ...
... Extrasolar planets to date • First extrasolar planet was discovered around a neutron star in 1991 • First extrasolar planet orbiting a normal star was found in 1995 by Michel Mayor and Didier Queloz of the Geneva Observatory in Switzerland orbiting the star 51 Pegasi • 126 planets have been discov ...
What Makes Up the Solar System?
... object in the night sky, after the moon. This planet is about the same size as Earth. ...
... object in the night sky, after the moon. This planet is about the same size as Earth. ...
Planet
A planet (from Ancient Greek ἀστήρ πλανήτης (astēr planētēs), or πλάνης ἀστήρ (plánēs astēr), meaning ""wandering star"") is an astronomical object orbiting a star, brown dwarf, or stellar remnant that is massive enough to be rounded by its own gravity, is not massive enough to cause thermonuclear fusion, and has cleared its neighbouring region of planetesimals.The term planet is ancient, with ties to history, science, mythology, and religion. Several planets in the Solar System can be seen with the naked eye. These were regarded by many early cultures as divine, or as emissaries of deities. As scientific knowledge advanced, human perception of the planets changed, incorporating a number of disparate objects. In 2006, the International Astronomical Union (IAU) officially adopted a resolution defining planets within the Solar System. This definition is controversial because it excludes many objects of planetary mass based on where or what they orbit. Although eight of the planetary bodies discovered before 1950 remain ""planets"" under the modern definition, some celestial bodies, such as Ceres, Pallas, Juno, Vesta (each an object in the solar asteroid belt), and Pluto (the first trans-Neptunian object discovered), that were once considered planets by the scientific community are no longer viewed as such.The planets were thought by Ptolemy to orbit Earth in deferent and epicycle motions. Although the idea that the planets orbited the Sun had been suggested many times, it was not until the 17th century that this view was supported by evidence from the first telescopic astronomical observations, performed by Galileo Galilei. By careful analysis of the observation data, Johannes Kepler found the planets' orbits were not circular but elliptical. As observational tools improved, astronomers saw that, like Earth, the planets rotated around tilted axes, and some shared such features as ice caps and seasons. Since the dawn of the Space Age, close observation by space probes has found that Earth and the other planets share characteristics such as volcanism, hurricanes, tectonics, and even hydrology.Planets are generally divided into two main types: large low-density giant planets, and smaller rocky terrestrials. Under IAU definitions, there are eight planets in the Solar System. In order of increasing distance from the Sun, they are the four terrestrials, Mercury, Venus, Earth, and Mars, then the four giant planets, Jupiter, Saturn, Uranus, and Neptune. Six of the planets are orbited by one or more natural satellites.More than a thousand planets around other stars (""extrasolar planets"" or ""exoplanets"") have been discovered in the Milky Way: as of 1 October 2015, 1968 known extrasolar planets in 1248 planetary systems (including 490 multiple planetary systems), ranging in size from just above the size of the Moon to gas giants about twice as large as Jupiter. On December 20, 2011, the Kepler Space Telescope team reported the discovery of the first Earth-sized extrasolar planets, Kepler-20e and Kepler-20f, orbiting a Sun-like star, Kepler-20. A 2012 study, analyzing gravitational microlensing data, estimates an average of at least 1.6 bound planets for every star in the Milky Way.Around one in five Sun-like stars is thought to have an Earth-sized planet in its habitable zone.