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ASTR120 Homework 6 − Solutions
ASTR120 Homework 6 − Solutions

... a. Since Enceladus and Dione have a 1 : 2 ratio of orbital periods, the time between successive oppositions would be the orbital period of Dione -- 65.7 hours b. For this part, we want to use the small angle formula. According to the text, the linear diameter of Dione is 1.0 x 106 m. Enceladus is 2. ...
Discussion of Chapter 2 Material
Discussion of Chapter 2 Material

... Therefore, the statement given makes sense, since we need heavier stars to make the chemical elements upon which our lives are based. In fact, only the most massive stars, greater than about 10 solar masses, will ever form the chemical elements of iron and those more massive than iron, up to and inc ...
The Science of Life in the Universe (Chap 2
The Science of Life in the Universe (Chap 2

... Therefore, the statement given makes sense, since we need heavier stars to make the chemical elements upon which our lives are based. In fact, only the most massive stars, greater than about 10 solar masses, will ever form the chemical elements of iron and those more massive than iron, up to and inc ...
The Science of Life in the Universe (Chap 2
The Science of Life in the Universe (Chap 2

... Therefore, the statement given makes sense, since we need heavier stars to make the chemical elements upon which our lives are based. In fact, only the most massive stars, greater than about 10 solar masses, will ever form the chemical elements of iron and those more massive than iron, up to and inc ...
Discussion of Chapter 2 Material
Discussion of Chapter 2 Material

... Therefore, the statement given makes sense, since we need heavier stars to make the chemical elements upon which our lives are based. In fact, only the most massive stars, greater than about 10 solar masses, will ever form the chemical elements of iron and those more massive than iron, up to and inc ...
Comets, Asteroids, and Meteors
Comets, Asteroids, and Meteors

... Asteroids • Not all asteroids are located in the asteroids belt and can pass near Earth • Jupiter’s gravity kept the asteroids from forming a planet • Some asteroids orbit just before and after Jupiter • Largest asteroid, Ceres, is 580 mi across but most are less than a few miles across ...
Solar Plasmas - Coalition for Plasma Science
Solar Plasmas - Coalition for Plasma Science

... it is 260 thousand times closer than any other star, the center of our universe and the engine of our existence. It is the creator and dynamo for the heliosphere (the sun’s extended “atmosphere”, or space environment), a cauldron of dynamic Plasma processes impose ever more structure as one moves ou ...
Planetary System Formation, Extrasolar Planets, Life in the Universe
Planetary System Formation, Extrasolar Planets, Life in the Universe

... meteorites. Heavy bombardment—was a period when the craters were formed roughly 4 billion years ago. 4. Ejection of material from the solar system by close encounters with planets ...
The Science of Life in the Universe (Chap 2
The Science of Life in the Universe (Chap 2

... Therefore, the statement given makes sense, since we need heavier stars to make the chemical elements upon which our lives are based. In fact, only the most massive stars, greater than about 10 solar masses, will ever form the chemical elements of iron and those more massive than iron, up to and inc ...
Lecture 3 notes - Department of Physics and Astronomy
Lecture 3 notes - Department of Physics and Astronomy

... Therefore, the statement given makes sense, since we need heavier stars to make the chemical elements upon which our lives are based. In fact, only the most massive stars, greater than about 10 solar masses, will ever form the chemical elements of iron and those more massive than iron, up to and inc ...
Exploring the Outer Solar System Jane Luu When I was
Exploring the Outer Solar System Jane Luu When I was

... these beautiful things. So I asked a friend of mine who were the people whose job it was it was to study these images, and that was when I first heard of planetary science. This revelation stuck in my mind, and a year later, when I was applying to graduate schools in physics, I applied to the Earth, ...
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hubble amazing universe worksheet

... and ____________________, and gasses are assigned colors. Blue is ___________, and green is ___________________. 8. This region is _____________ light years across! 9. Hubble even showed a star about to die! As a star runs out of ______________, it expands, and it is released into space. 10. Someday ...
Powerpoint - u.arizona.edu
Powerpoint - u.arizona.edu

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... an artist’s conception of such a planet. ...
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... B. Origin of the Galaxy - Big Bang Theory (just one of many) 1. at one time, the entire universe was confined to a dense, hot, super massive ball 2. 13.7 billion years ago, a violent explosion occurred 3. this caused the hurling of material in all directions which created all matter and space 4. sev ...
HotJup
HotJup

... 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 hypothesis ...
PHY2083 ASTRONOMY
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... wavelengths, causing dark lines. Darkest part of line from regions higher up in the photosphere where the gas is cooler. ...
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Astronomy DR Packet

... 6. Which of these three inner layers is the source of the Sun’s energy? _____________________ 7. Which layer does it take 50 million years for light energy to travel through? _____________________ 8. In which layer does hot material rise, then cool and sink back down again? _____________________ The ...
Day_14
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... planet with an orbit like Earth’s would: A. move faster when further from the Sun. B. move slower when closer to the Sun. C. experience a dramatic change in orbital speed from month to month. D. experience very little change in orbital speed over the course of the year. E. none of the above. ...
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Used for stars w/in a few hundred LY

Objectives: Learn what units scientists measure distances in space
Objectives: Learn what units scientists measure distances in space

... Scientists do not want to work with large numbers, so they make up new units to measure distances in space with. The two units used in astronomy are: ...
HP GTOR - student handout
HP GTOR - student handout

... However, it is found that the point of closest approach of Mercury to the sun does not always occur at the same place, rather it slowly moves around the sun. This rotation of the orbit is called a precession. The precession of the orbit is not peculiar to Mercury, all the planetary orbits precess. I ...
1. Differential Rotation
1. Differential Rotation

... 12. Describe the orbits of Janus and Epimethius. • They are coorbital satellites. One is slightly closer to the planet, so it orbits slightly faster. When the inner moon "laps" the outer one, they switch places. ...
11/17/2011 1 Ch. 27 Notes: Nebular Hypothesis The Nebular
11/17/2011 1 Ch. 27 Notes: Nebular Hypothesis The Nebular

... – To examine the evidence of the origin of our solar system. – Use reasoning skills to determine how the formation occurred. ...
May 2016 - Pomona Valley Amateur Astronomers
May 2016 - Pomona Valley Amateur Astronomers

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Formation and evolution of the Solar System



The formation of the Solar System began 4.6 billion years ago with the gravitational collapse of a small part of a giant molecular cloud. Most of the collapsing mass collected in the center, forming the Sun, while the rest flattened into a protoplanetary disk out of which the planets, moons, asteroids, and other small Solar System bodies formed.This widely accepted model, known as the nebular hypothesis, was first developed in the 18th century by Emanuel Swedenborg, Immanuel Kant, and Pierre-Simon Laplace. Its subsequent development has interwoven a variety of scientific disciplines including astronomy, physics, geology, and planetary science. Since the dawn of the space age in the 1950s and the discovery of extrasolar planets in the 1990s, the model has been both challenged and refined to account for new observations.The Solar System has evolved considerably since its initial formation. Many moons have formed from circling discs of gas and dust around their parent planets, while other moons are thought to have formed independently and later been captured by their planets. Still others, such as the Moon, may be the result of giant collisions. Collisions between bodies have occurred continually up to the present day and have been central to the evolution of the Solar System. The positions of the planets often shifted due to gravitational interactions. This planetary migration is now thought to have been responsible for much of the Solar System's early evolution.In roughly 5 billion years, the Sun will cool and expand outward many times its current diameter (becoming a red giant), before casting off its outer layers as a planetary nebula and leaving behind a stellar remnant known as a white dwarf. In the far distant future, the gravity of passing stars will gradually reduce the Sun's retinue of planets. Some planets will be destroyed, others ejected into interstellar space. Ultimately, over the course of tens of billions of years, it is likely that the Sun will be left with none of the original bodies in orbit around it.
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