Which object is closest to Earth
... Stars can be classified according to their properties, such as diameter, mass, luminosity, and temperature. Some stars are so large that the orbits of the planets in our solar system would easily fit inside them. Stars are grouped together in galaxies covering vast distances. Galaxies contain from 1 ...
... Stars can be classified according to their properties, such as diameter, mass, luminosity, and temperature. Some stars are so large that the orbits of the planets in our solar system would easily fit inside them. Stars are grouped together in galaxies covering vast distances. Galaxies contain from 1 ...
PEP Talk - UCSD Department of Physics
... Moon harmonic coefficients Earth, Moon orbital elements Lunar core, mantle rotation I.C.’s Lunar core&mantle moments, coupling Tidal drag, lunar k2, and dissipation EP violation, de Sitter-like precession ...
... Moon harmonic coefficients Earth, Moon orbital elements Lunar core, mantle rotation I.C.’s Lunar core&mantle moments, coupling Tidal drag, lunar k2, and dissipation EP violation, de Sitter-like precession ...
Document
... Explaining the Characteristics of the Solar System 1. The orbits of the planets lie in the same plane because the rotating solar nebula collapsed into a disk, and the planets formed in that disk. Objects are co-eval (4.) 2. The division into small inner and giant outer planets rests upon the amoun ...
... Explaining the Characteristics of the Solar System 1. The orbits of the planets lie in the same plane because the rotating solar nebula collapsed into a disk, and the planets formed in that disk. Objects are co-eval (4.) 2. The division into small inner and giant outer planets rests upon the amoun ...
Answer - Brock physics
... (a) * the night sky should not be dark. (b) the Sun should have died long ago. (c) the solar system should be considerably smaller. (d) the Milky Way should contain much more dust than it actually has. 39. A simple resolution to Olbers’s paradox, suggested by the poet Edgar Allan Poe, and later gene ...
... (a) * the night sky should not be dark. (b) the Sun should have died long ago. (c) the solar system should be considerably smaller. (d) the Milky Way should contain much more dust than it actually has. 39. A simple resolution to Olbers’s paradox, suggested by the poet Edgar Allan Poe, and later gene ...
Phys 100 – Astronomy (Dr. Ilias Fernini) Review Questions for
... 13. In science fiction movies, it is common to use a space craft to travel across the Milky Way Galaxy or to assert that we have been visited by alien space craft from the other side of the Milky Way Galaxy. If one has a space craft that can travel at the speed of light, to an observer on the earth, ...
... 13. In science fiction movies, it is common to use a space craft to travel across the Milky Way Galaxy or to assert that we have been visited by alien space craft from the other side of the Milky Way Galaxy. If one has a space craft that can travel at the speed of light, to an observer on the earth, ...
Witnesses to Local Cosmic History - Max-Planck
... around whom everything revolves. The terrestrial planets Mercury, Venus, Earth and Mars orbit closest to the Sun, just like the royal court. Much further away, like the landed gentry, the gas giants Jupiter, Saturn, Uranus and Neptune live out their existence. In terms of numbers, however, the aster ...
... around whom everything revolves. The terrestrial planets Mercury, Venus, Earth and Mars orbit closest to the Sun, just like the royal court. Much further away, like the landed gentry, the gas giants Jupiter, Saturn, Uranus and Neptune live out their existence. In terms of numbers, however, the aster ...
The Sun and Stardust
... How are other elements made? Massive stars burn their hydrogen (and helium and carbon-nitrogen-oxygen) very quickly. At the end of their life heavier (metals) are formed such as vanadium, chromium, manganese, iron, cobalt, and nickel etc. Then massive stars (about ten times more massive than the Su ...
... How are other elements made? Massive stars burn their hydrogen (and helium and carbon-nitrogen-oxygen) very quickly. At the end of their life heavier (metals) are formed such as vanadium, chromium, manganese, iron, cobalt, and nickel etc. Then massive stars (about ten times more massive than the Su ...
Star Chart_May-June_2016
... TO USE THIS CHART: Hold the chart in front of you and rotate it so the direction you are facing (N,S,E,W) is at the bottom of the chart. The edge of the chart represents the horizon; the overhead point is at centre. On a moonless night in the country, you will see more stars than are shown here; dee ...
... TO USE THIS CHART: Hold the chart in front of you and rotate it so the direction you are facing (N,S,E,W) is at the bottom of the chart. The edge of the chart represents the horizon; the overhead point is at centre. On a moonless night in the country, you will see more stars than are shown here; dee ...
ASTRONOMY 4
... momentum of the Solar System, but it doesn't. T F 37) According to the nebular hypothesis, the planets should have most of the angular momentum of the Solar System, but they don't. T F 38) The Moon should be rotating and revolving faster than it is. J. What evidence do we have that disks of gas and ...
... momentum of the Solar System, but it doesn't. T F 37) According to the nebular hypothesis, the planets should have most of the angular momentum of the Solar System, but they don't. T F 38) The Moon should be rotating and revolving faster than it is. J. What evidence do we have that disks of gas and ...
The Origin of the Solar System: Progress in Understanding Accretion
... As yet, these new discoveries have not been incorporated into formation models. Where once we thought that Jupiter-like planets would naturally form at the distance from a star where water would condense, and represent a natural bulge in the mass available in the disk, we now have many counter-exam ...
... As yet, these new discoveries have not been incorporated into formation models. Where once we thought that Jupiter-like planets would naturally form at the distance from a star where water would condense, and represent a natural bulge in the mass available in the disk, we now have many counter-exam ...
Chapter 1 Questions
... i. Any body orbiting beyond Neptune is called a Trans-Neptunian object, which are collectively referred to as Kuiper belt objects, the largest of which is Pluto. Currently there are 1000 objects. ii. Originally it was claimed that Pluto was necessary to explain irregularities in the motions of Uranu ...
... i. Any body orbiting beyond Neptune is called a Trans-Neptunian object, which are collectively referred to as Kuiper belt objects, the largest of which is Pluto. Currently there are 1000 objects. ii. Originally it was claimed that Pluto was necessary to explain irregularities in the motions of Uranu ...
For Chapter 16
... form a nearly round shape. • (3) It must be the dominant body within its orbit. ...
... form a nearly round shape. • (3) It must be the dominant body within its orbit. ...
Planets
... Lots of careful images of large amount of sky Comparison to see any changes Lensing searches get transit data `for free' ...
... Lots of careful images of large amount of sky Comparison to see any changes Lensing searches get transit data `for free' ...
EXPLORING THE SOLAR SYSTEM
... which can be seen through a pair of binoculars. This big four are called the Galilean satellites because they were discovered by Galileo 400 years ago. The illustration above shows them lined up in order of distance from Jupiter with our own Moon at the right for comparison. As can be seen, three of ...
... which can be seen through a pair of binoculars. This big four are called the Galilean satellites because they were discovered by Galileo 400 years ago. The illustration above shows them lined up in order of distance from Jupiter with our own Moon at the right for comparison. As can be seen, three of ...
(the inner and outer planets).
... the other outer planets. •Pluto is composed of rock compared to the “gas giants.” •Pluto does not have any rings. ...
... the other outer planets. •Pluto is composed of rock compared to the “gas giants.” •Pluto does not have any rings. ...
Biology: Unit One Calendar
... Describe how astronomers determine the composition and temperature of stars (2d) Explain why stars appear to move in the sky. (1d) Describe one way astronomers measure distance to stars. (1d) Explain the difference between absolute magnitude and apparent magnitude. Section 30.2 Stellar Evolu ...
... Describe how astronomers determine the composition and temperature of stars (2d) Explain why stars appear to move in the sky. (1d) Describe one way astronomers measure distance to stars. (1d) Explain the difference between absolute magnitude and apparent magnitude. Section 30.2 Stellar Evolu ...
wdtoc1
... dark areas and younger light areas. Unlike craters on rocky worlds, such as Earth’s moon, Ganymede’s craters have flat floors and sagging walls because of slowly flowing ice that is smoothing the moon’s surface. The largest cratered area is Galileo Regio. This young terrain is striped by parallel gr ...
... dark areas and younger light areas. Unlike craters on rocky worlds, such as Earth’s moon, Ganymede’s craters have flat floors and sagging walls because of slowly flowing ice that is smoothing the moon’s surface. The largest cratered area is Galileo Regio. This young terrain is striped by parallel gr ...
HotJup
... The ClC(O)OO, the key to Venus chemistry, identified. Improved chemistry can explain the low O2 of Venus Yung and DeMore (1982) vindicated Can study other reactions involving ClC(O)OO Can look for ClC(O)OO on Venus Venus, the ultimate fate of all terrestrial planets ala Ingersoll 1969 --- testable h ...
... The ClC(O)OO, the key to Venus chemistry, identified. Improved chemistry can explain the low O2 of Venus Yung and DeMore (1982) vindicated Can study other reactions involving ClC(O)OO Can look for ClC(O)OO on Venus Venus, the ultimate fate of all terrestrial planets ala Ingersoll 1969 --- testable h ...
Lesson 3 The Solar System
... they noticed a few exceptions. Five of the tiny bright lights appeared in different parts of the sky every night. They did not stay the same distance from the other stars. At other times they were not present at all. The ancient Greek observers named these objects planets, a word that means “wandere ...
... they noticed a few exceptions. Five of the tiny bright lights appeared in different parts of the sky every night. They did not stay the same distance from the other stars. At other times they were not present at all. The ancient Greek observers named these objects planets, a word that means “wandere ...
Solar System Weather
... terrain of these planets. Another question that we will look into is why some planets have obtained an atmosphere, while others do not. Why is it that some planets have a thicker atmosphere than others? These answers will be included in our final report. Much research has been done to acquire knowle ...
... terrain of these planets. Another question that we will look into is why some planets have obtained an atmosphere, while others do not. Why is it that some planets have a thicker atmosphere than others? These answers will be included in our final report. Much research has been done to acquire knowle ...
GRADE-5-SCIENCE_REVISION_PAPER-THIRD_TERM-2014
... d. The water in the air below its boiling point is called ___________________ e. The term that means turning water to water vapour is ______________ f. A natural body that moves around a planet is a ________________ g. The second largest planet in the solar system is _________________ h. An instrume ...
... d. The water in the air below its boiling point is called ___________________ e. The term that means turning water to water vapour is ______________ f. A natural body that moves around a planet is a ________________ g. The second largest planet in the solar system is _________________ h. An instrume ...
UCSB CLAS
... A planet (P) is moving around the Sun (S) in an elliptical orbit. As the planet moves from aphelion to perihelion, the Sun’s gravitational force A. does positive work on the planet. B. does negative work on the planet. C. does positive work on the planet during part of the motion and negative work d ...
... A planet (P) is moving around the Sun (S) in an elliptical orbit. As the planet moves from aphelion to perihelion, the Sun’s gravitational force A. does positive work on the planet. B. does negative work on the planet. C. does positive work on the planet during part of the motion and negative work d ...
File
... another large object collided with Earth. • A large amount of matter was ejected into space in the collision. ...
... another large object collided with Earth. • A large amount of matter was ejected into space in the collision. ...
Definition of planet
The definition of planet, since the word was coined by the ancient Greeks, has included within its scope a wide range of celestial bodies. Greek astronomers employed the term asteres planetai (ἀστέρες πλανῆται), ""wandering stars"", for star-like objects which apparently moved over the sky. Over the millennia, the term has included a variety of different objects, from the Sun and the Moon to satellites and asteroids.By the end of the 19th century the word planet, though it had yet to be defined, had become a working term applied only to a small set of objects in the Solar System. After 1992, however, astronomers began to discover many additional objects beyond the orbit of Neptune, as well as hundreds of objects orbiting other stars. These discoveries not only increased the number of potential planets, but also expanded their variety and peculiarity. Some were nearly large enough to be stars, while others were smaller than Earth's moon. These discoveries challenged long-perceived notions of what a planet could be.The issue of a clear definition for planet came to a head in 2005 with the discovery of the trans-Neptunian object Eris, a body more massive than the smallest then-accepted planet, Pluto. In its 2006 response, the International Astronomical Union (IAU), recognised by astronomers as the world body responsible for resolving issues of nomenclature, released its decision on the matter. This definition, which applies only to the Solar System, states that a planet is a body that orbits the Sun, is massive enough for its own gravity to make it round, and has ""cleared its neighbourhood"" of smaller objects around its orbit. Under this new definition, Pluto and the other trans-Neptunian objects do not qualify as planets. The IAU's decision has not resolved all controversies, and while many scientists have accepted the definition, some in the astronomical community have rejected it outright.