ASTR 330: The Solar System
... • Some represent original denizens of the Mars-Jupiter gap, where the formation of an actual planet was probably inhibited by the nearby presence of massive Jupiter. ...
... • Some represent original denizens of the Mars-Jupiter gap, where the formation of an actual planet was probably inhibited by the nearby presence of massive Jupiter. ...
PHYSICS 1500 - ASTRONOMY TOTAL: 100 marks Section A Please
... Uranus and Neptune do not contain liquid metallic hydrogen because they (a) (b) (c) (d) (e) ...
... Uranus and Neptune do not contain liquid metallic hydrogen because they (a) (b) (c) (d) (e) ...
slides - Relativity Group
... • A 10-km asteroid would produce the explosion equivalent of several billion nuclear bombs • Initial destruction by high temperatures, blast, and acid rain would be followed by months of darkness and intense cold as the Sun’s light is blotted out by clouds of dust • Further evidence of the impact is ...
... • A 10-km asteroid would produce the explosion equivalent of several billion nuclear bombs • Initial destruction by high temperatures, blast, and acid rain would be followed by months of darkness and intense cold as the Sun’s light is blotted out by clouds of dust • Further evidence of the impact is ...
Oxygen Isotopes Anomalies in the Solar System and the G0
... and supernova explosions) is expelled to ISM. The molecular clouds are sites for star formation. Extensive chemical and physical processing of materials in the Solar nebula and planetary bodies destroys the ISM heritage. But: Asteroids and comets have escaped significant alteration by the repr ...
... and supernova explosions) is expelled to ISM. The molecular clouds are sites for star formation. Extensive chemical and physical processing of materials in the Solar nebula and planetary bodies destroys the ISM heritage. But: Asteroids and comets have escaped significant alteration by the repr ...
Part 1
... Quic kTime™ and a TIFF (Uncompress ed) dec ompres sor are needed to s ee this pic ture. ...
... Quic kTime™ and a TIFF (Uncompress ed) dec ompres sor are needed to s ee this pic ture. ...
Chapter 15
... • Large interstellar cloud of gas and dust starts to contract, heating as it does so • Sun forms in center; dust provides condensation nuclei, around which planets form ...
... • Large interstellar cloud of gas and dust starts to contract, heating as it does so • Sun forms in center; dust provides condensation nuclei, around which planets form ...
Our Sun, Sol - Hobbs High School
... • However, if the star was more than 20 times our sun’s mass, the result of its supernova explosion is a completely collapsed object called a black ...
... • However, if the star was more than 20 times our sun’s mass, the result of its supernova explosion is a completely collapsed object called a black ...
Secular Increase of the Astronomical Unit: a Possible Explanation in
... now, several authors have discussed a redefinition of the system of astronomical units, e.g., Huang et al. (1995); Standish (2005); Klioner (2008); Capitaine and Guinot (2009). By using equations (1) and (24), we obtain GMSun in SI units, and so far GMSun is conventionally regarded as being a “fixed ...
... now, several authors have discussed a redefinition of the system of astronomical units, e.g., Huang et al. (1995); Standish (2005); Klioner (2008); Capitaine and Guinot (2009). By using equations (1) and (24), we obtain GMSun in SI units, and so far GMSun is conventionally regarded as being a “fixed ...
Chapter 2 Astronomy Notes
... (TNOs) discovered increased, astronomers found more and more bodies that approached Pluto in size. Many began to question the continued inclusion of Pluto as a planet. If Pluto was a planet, it seemed inevitable that a number of TNOs would eventually be counted as planets as well, and the Solar Syst ...
... (TNOs) discovered increased, astronomers found more and more bodies that approached Pluto in size. Many began to question the continued inclusion of Pluto as a planet. If Pluto was a planet, it seemed inevitable that a number of TNOs would eventually be counted as planets as well, and the Solar Syst ...
Asteroids and Comets - Wayne State University
... amount of dust and other solids Coma: dense cloud of water, carbon dioxide, and other neutral gases sublimed off of the nucleus Hydrogen cloud: huge (millions of km in diameter), but very sparse, envelope of neutral hydrogen Dust tail: up to 10 million km long composed of smoke-sized dust particles ...
... amount of dust and other solids Coma: dense cloud of water, carbon dioxide, and other neutral gases sublimed off of the nucleus Hydrogen cloud: huge (millions of km in diameter), but very sparse, envelope of neutral hydrogen Dust tail: up to 10 million km long composed of smoke-sized dust particles ...
Lecture9_2014_v2 - UCO/Lick Observatory
... planets formed? • Theory for our Solar System: – Stellar wind from young Sun blew volatiles outwards – “Snowstorm” at 5 AU where water-ice solidified – Fast accretion of large icy planet (~10 MEarth) which then collected H/He atmosphere » Gas giants Jupiter, Saturn just outside “frost line” » Small ...
... planets formed? • Theory for our Solar System: – Stellar wind from young Sun blew volatiles outwards – “Snowstorm” at 5 AU where water-ice solidified – Fast accretion of large icy planet (~10 MEarth) which then collected H/He atmosphere » Gas giants Jupiter, Saturn just outside “frost line” » Small ...
Galaxies • Test 3 (New date) – Thurs, 9 April
... mass of the sun is greater. Write an equivalent statement for the galaxy ...
... mass of the sun is greater. Write an equivalent statement for the galaxy ...
Astronomy 112: Physics of Stars Problem set 2: Due April 29 1. Time
... (a) Estimate a typical value for the temperature gradient dT/dr deep inside the sun by dividing its central temperature, 15.7 ×106 K by its radius, 6.96 × 1010 cm. Assume the mean free path of photons in the sun is 0.1 cm. What is the average change in temperature across this distance? The anisotrop ...
... (a) Estimate a typical value for the temperature gradient dT/dr deep inside the sun by dividing its central temperature, 15.7 ×106 K by its radius, 6.96 × 1010 cm. Assume the mean free path of photons in the sun is 0.1 cm. What is the average change in temperature across this distance? The anisotrop ...
Gravitational Collapse
... Solar system was formed from a giant molecular cloud, known as the proto-solar or primordial nebula. o Similar to the Orion Nebula (right). ...
... Solar system was formed from a giant molecular cloud, known as the proto-solar or primordial nebula. o Similar to the Orion Nebula (right). ...
The Sun http://stardate.org/images/gallery/sun5.jpg
... • It takes one year to complete an entire orbit around the Sun. • During Earth’s orbit we experience changes in climate called “Seasons”. ...
... • It takes one year to complete an entire orbit around the Sun. • During Earth’s orbit we experience changes in climate called “Seasons”. ...
Sun, Moon and Stars - Siemens Science Day
... Milky Way – A system that can be comprised of millions of stars that have their own solar systems Solar System – (Our solar system) includes the sun with its planets and their natural satellites such as Earth’s moon; dwarf planets such as Pluto and Ceres; asteroids; comets and meteoroids Sun – A sta ...
... Milky Way – A system that can be comprised of millions of stars that have their own solar systems Solar System – (Our solar system) includes the sun with its planets and their natural satellites such as Earth’s moon; dwarf planets such as Pluto and Ceres; asteroids; comets and meteoroids Sun – A sta ...
The Scale of the Cosmos
... originally taken to be fossils of ancient Martian organisms could be non-biological mineral ...
... originally taken to be fossils of ancient Martian organisms could be non-biological mineral ...
AST 301 Test #3 Friday Nov. 12 Name: 1. a) The Sun is in
... 1. a) The Sun is in hydrostatic equilibrium. What does this mean? What is the definition of hydrostatic equilibrium as we apply it to the Sun? Pressure inside the star pushing it apart balances gravity pulling it together. So it doesn’t change its size. 1. a) The Sun is in thermal equilibrium. What ...
... 1. a) The Sun is in hydrostatic equilibrium. What does this mean? What is the definition of hydrostatic equilibrium as we apply it to the Sun? Pressure inside the star pushing it apart balances gravity pulling it together. So it doesn’t change its size. 1. a) The Sun is in thermal equilibrium. What ...
The Moon and Planets
... and that they are fantastically far away. Indeed, the star cluster is so very remote that we look towards it in parallel directions from Kingston (K) and Santiago (S), as shown by the arrows. (The stars are way off to the upper right , not as drawn in this figure. ) From Kingston, the Moon lies righ ...
... and that they are fantastically far away. Indeed, the star cluster is so very remote that we look towards it in parallel directions from Kingston (K) and Santiago (S), as shown by the arrows. (The stars are way off to the upper right , not as drawn in this figure. ) From Kingston, the Moon lies righ ...
Unit 2 – The Moon and the Planets
... and that they are fantastically far away. Indeed, the star cluster is so very remote that we look towards it in parallel directions from Kingston (K) and Santiago (S), as shown by the arrows. (The stars are way off to the upper right , not as drawn in this figure. ) From Kingston, the Moon lies righ ...
... and that they are fantastically far away. Indeed, the star cluster is so very remote that we look towards it in parallel directions from Kingston (K) and Santiago (S), as shown by the arrows. (The stars are way off to the upper right , not as drawn in this figure. ) From Kingston, the Moon lies righ ...
Formation of the Solar System Section 28.1
... Newton determined that each planet orbits a point between it and the Sun called the center of mass. Just as the balance point on a seesaw is closer to the heavier box, the center of mass between two orbiting bodies is closer to the more massive body. ...
... Newton determined that each planet orbits a point between it and the Sun called the center of mass. Just as the balance point on a seesaw is closer to the heavier box, the center of mass between two orbiting bodies is closer to the more massive body. ...
CBA # 2 Earth and Space and Sound Energy
... 3. The solar system includes the sun and all other celestial bodies that orbit the sun. Each planet in the solar system has unique characteristics. ● There are 8 planets in our solar system. All the planets orbit the sun. ● The planets in order closest to the sun are Mercury, Venus, Earth, Mars, ...
... 3. The solar system includes the sun and all other celestial bodies that orbit the sun. Each planet in the solar system has unique characteristics. ● There are 8 planets in our solar system. All the planets orbit the sun. ● The planets in order closest to the sun are Mercury, Venus, Earth, Mars, ...
Solar System
The Solar System comprises the Sun and the planetary system that orbits it, either directly or indirectly. Of those objects that orbit the Sun directly, the largest eight are the planets, with the remainder being significantly smaller objects, such as dwarf planets and small Solar System bodies such as comets and asteroids. Of those that orbit the Sun indirectly, two are larger than the smallest planet.The Solar System formed 4.6 billion years ago from the gravitational collapse of a giant interstellar molecular cloud. The vast majority of the system's mass is in the Sun, with most of the remaining mass contained in Jupiter. The four smaller inner planets, Mercury, Venus, Earth and Mars, are terrestrial planets, being primarily composed of rock and metal. The four outer planets are giant planets, being substantially more massive than the terrestrials. The two largest, Jupiter and Saturn, are gas giants, being composed mainly of hydrogen and helium; the two outermost planets, Uranus and Neptune, are ice giants, being composed largely of substances with relatively high melting points compared with hydrogen and helium, called ices, such as water, ammonia and methane. All planets have almost circular orbits that lie within a nearly flat disc called the ecliptic.The Solar System also contains smaller objects. The asteroid belt, which lies between Mars and Jupiter, mostly contains objects composed, like the terrestrial planets, of rock and metal. Beyond Neptune's orbit lie the Kuiper belt and scattered disc, populations of trans-Neptunian objects composed mostly of ices, and beyond them a newly discovered population of sednoids. Within these populations are several dozen to possibly tens of thousands of objects large enough to have been rounded by their own gravity. Such objects are categorized as dwarf planets. Identified dwarf planets include the asteroid Ceres and the trans-Neptunian objects Pluto and Eris. In addition to these two regions, various other small-body populations, including comets, centaurs and interplanetary dust, freely travel between regions. Six of the planets, at least three of the dwarf planets, and many of the smaller bodies are orbited by natural satellites, usually termed ""moons"" after the Moon. Each of the outer planets is encircled by planetary rings of dust and other small objects.The solar wind, a stream of charged particles flowing outwards from the Sun, creates a bubble-like region in the interstellar medium known as the heliosphere. The heliopause is the point at which pressure from the solar wind is equal to the opposing pressure of interstellar wind; it extends out to the edge of the scattered disc. The Oort cloud, which is believed to be the source for long-period comets, may also exist at a distance roughly a thousand times further than the heliosphere. The Solar System is located in the Orion Arm, 26,000 light-years from the center of the Milky Way.