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Astronomy Directed Reading
Astronomy Directed Reading

... Ch 27.2, 3 Models and Inner Planets 37. The tendency of a stationary body to remain at rest or of a moving body to remain in motion until an outside force acts upon it is called _________________________________. 38. Newton discovered that an outside force called _______________________ causes the o ...
here - ScienceA2Z.com
here - ScienceA2Z.com

... The rings will be the CD, we will decorate the side with the writing/picture Try not to get glitter in the center (clear part) of the cd, that is were you will glue the styrofoam ball. Use a paint brush to spread the glue around if you want You can also use just the glue bottle to make the rings loo ...
Which of the following statements is TRUE
Which of the following statements is TRUE

... Kepler’s first law states that the orbit of each planet in our Solar System is an ellipse with the Sun located at one of the foci of the ellipse We live in an expanding Universe, and yet it is difficult to find a parking space on this campus! Electrons within atoms can have one of many possible disc ...
Study Guide for 1ST Astronomy Exam
Study Guide for 1ST Astronomy Exam

... Unit 7: The Day  Describe the location of sunrise and sunset along the horizon for any given day of the year. (Figure 7.1)  Describe how the maximum altitude of the Sun depends on day of the year. Fig 7.1)  Explain why the solar day is different from the sidereal day. (Fig 7.2)  Describe how day ...
Stars
Stars

... A ‘Star’ is a large celestial body composed of gravitationally contained hot gases emitting electromagnetic radiation, especially light, as a result of nuclear reactions inside the star. The sun is a star. With the exception of the sun, stars appear to be fixed, maintaining the same pattern in the s ...
Solar System
Solar System

The Sun
The Sun

... green, blue and violet – like a rainbow ...
File
File

... Uranus is the seventh planet from the sun and is the third largest planet in the solar system. Unlike the first six planets which were known to ancient civilizations, Uranus was not discovered until 1781. Uranus was named after the ancient Greek god of the heavens. Its atmosphere has small amounts o ...
Chapter 12
Chapter 12

... – This theory says the Universe goes through a series of bangs and crunches in an ongoing cycle – Currently still expanding from the most recent ...
Lecture Six (Powerpoint format) - FLASH Center for Computational
Lecture Six (Powerpoint format) - FLASH Center for Computational

The Solar System
The Solar System

... The Sun • It is over one million times larger than Earth. • It is eight light minutes away from Earth or 92,957,000 miles. • The temperature is 15 million degrees K. One K = 13-25 million degrees! ...
Chapter 28
Chapter 28

... What is a comet and where are they found? It could have a shot gun effect and hit the Earth in Small icy bodies (1-10 km in diameter) that have highly eccentric orbits around the Sun. They are largely found in the area from the Kuiper belt out to 100,000 AU. This is known as the Oort cloud. Some ge ...
The Solar System (Ch. 6 in text) Consists of the sun (a typical star
The Solar System (Ch. 6 in text) Consists of the sun (a typical star

chapter3 - Empyrean Quest Publishers
chapter3 - Empyrean Quest Publishers

... • Model was only a little more accurate than Ptolemaic model in predicting planetary positions, because it still used perfect circles & stars on a sphere, only a little bigger than Pythagoras claimed. ...
Study Guide for Unit 4: Stars and Solar System
Study Guide for Unit 4: Stars and Solar System

... is waxing and left when it is waning. The moon does not make its own light. It is reflecting the Suns light. *Half of the moon is always lit, however during the moons orbit we see different fractions of the lit portion. *The moon has gravity the pulls slightly on the Earth. This causes ocean tides. ...
All about Earth
All about Earth

... Our favorite object that we learned about in space was the planet Jupiter. It was amazing to find out that Jupiter has a constant storm. We are so glad that earth does not have a great red spot! ...
Space
Space

Chapter 2 - The Solar System
Chapter 2 - The Solar System

... the hydrogen in its core. It will continue to radiate "peacefully" for another 5 billion years or so (although its luminosity will approximately double in that time). It will then enter its red giant phase, expanding as the hydrogen fuel in the core is consumed and it starts to burn helium. ...
Planet Development
Planet Development

... Few craters mark the surface of Triton suggesting that it has filled recent craters. Currently, astronomers are considering a theory that proposes that many small icy planetesimals may have formed just beyond the orbit of Neptune. Most of these bodies were either destroyed in collisions or ejected t ...
Day-26
Day-26

... have 1 to ten times the mass of Jupiter.  Some of these orbit close to their stars and are called hot Jupiters.  It is easier to find these very large planets due to the greater “wobble” they cause for their stars. ...
AST 105 HW #10 Solution
AST 105 HW #10 Solution

... being flexed by changing tidal forces as they orbit. While the tidal heating tries to circularize their orbits, they are trapped in an orbital resonance with each other that keeps their eccentricities larger than they would otherwise be. This explains why these moons show geological activity when we ...
TEST1-WHITE Modern scientific theories are NOT: Testable
TEST1-WHITE Modern scientific theories are NOT: Testable

... a. It is best measured over exactly one year intervals b. It is inversely proportional to the distance to the star c. It was first observed by Galileo with his new telescope d. It is only applicable to objects within the solar system e. It is more accurate as the distances to objects become greater ...



... produced by fragmentation of the larger ones, are more numerous.The rocks normally remain in circular, stable orbits, but collisions, along with the gravitational influence of Jupiter, can throw them into narrow, unstable orbits. Then the asteroids may enter the inner solar system, where they pose a ...
Semester Review Answers - School District of La Crosse
Semester Review Answers - School District of La Crosse

... 23. The scientist who first choose to think of the solar system as heliocentric was: Aristarchus 24. Galileo was put under pressure from the church because: all the answers are correct 25. The point where all space and time seem to vanish out of existence is: singularity 26. The theory which suggest ...
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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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