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Astronomy Chapters 22-24
Astronomy Chapters 22-24

... An AU is the distance of the Earth to the sun, about 150 million km. ...
the planets - St John Brebeuf
the planets - St John Brebeuf

... 1) Our solar system is full of planets, moons, asteroids and comets, all of which revolve around the Sun at the center. 2) When a star forms from a nebula, gravity pulls most of the material into the new star, but some may also clump together to form objects in a solar system. a) ...
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... It is a large ball of rock or gas that follows a path around the sun (An object moving around a star.) ...
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... A wobble, like a top. Effects the seasons, and has been suggested that it relates to global warming/cooling (alone = inaccurate due to rate of warming trend). ...
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... The Solar System Study Guide 1. The solar system is made of the Sun and its eight planets along with many dwarf planets, moons, asteroids, and comets 2. The known planets in the solar system are: Mercury, Venus, Earth , Mars, Jupiter, Saturn , Uranus, Neptune and what was once known as Pluto is now ...
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... enough to fit a earth in it’s similar to the great red stop on Jupiter 3. Neptune winds are three times stronger than Jupiter's and nine times stronger than earths ...


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Ch. 20 Classifying Objects in the Solar System
Ch. 20 Classifying Objects in the Solar System

... Directions: Label the name of each object or set of objects within the solar system on the lines provided in the diagram above. Then answer the questions below. 1. The Sun is considered a star because it is the only object in our solar system hot enough to undergo the process of ______________ _____ ...
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... because it is made of rock and metal. • Pluto has only one moon and takes about 249 years to orbit the sun. • Part of Pluto’s orbit passes inside that of Neptune, so at times Neptune is the planet farthest from the sun. • Pluto was located and named in 1930, but today Pluto is no longer considered a ...
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... as hydrogen and helium Orbit – the path an object takes as it moves around another object i.e. planets orbit around the sun Fill in the blanks for each of the following questions: 1. universe 20. winter 2. astronomy 21. towards 3. constellations 22. away from 4. Orion 23. Sun 5. Solar system 24. sat ...
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... ___________________ is best known for its rings, made of ice, dust, boulders, and frozen ___________________. Uranus also has many rings and moons. This planet rotates on a tilted axis that is tilted more than other planets. The fastest winds in our solar system occur on ___________________. As far ...
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... clump together to form planets. Interstellar dust (grain-size particles) lies between stars remnants of old, dead stars. These dust grains form condensation nuclei other atoms attach to them to start the “ ll i ” process to “collapsing” form the planets in the ggas cloud. ...
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... orbits of Mars and Jupiter.  It is believed that the asteroids in the asteroid belt never formed a planet because of the gravity of nearby Jupiter kept pulling them apart.  Today, millions of asteroids probably inhabit the asteroid belt, with many more scattered throughout the solar system. ...
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... The solar system formed from the collapse of an interstellar cloud.  A collapsed interstellar cloud formed the Sun and planets from a rotating disk.  The inner planets formed closer to the Sun than the outer planets, leaving debris to produce asteroids and ...
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... relatively large gap in the solar system, where you might expect to find a planet. But instead there is a swarm of much smaller bodies, called asteroids, or minor planets. This area is called the Asteroid Belt. Around 2500 of these bodies have been discovered, and are usually just chunks of rock mea ...
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... INNER PLANETS: the 4 planets closest to the sun. They are small and rocky: Mercury, Venus, Earth & Mars OUTER PLANETS: the 4 planets furthest from the sun. They are large and made mostly of gas: Jupiter, Saturn, Uranus, Neptune STAR: a sphere of hot, glowing gases that gives off its own light and is ...
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... the Earth’s orbit will not change. Since the Sun is so far away, it appears to the Earth to be a point source. The black hole will also appear to be a point source so the orbit will not change. CHAPTER 11 1.C The halo is home to old, metal-poor stars. Globular clusters contain some of the oldest sta ...
Space Flight to the Stars - Laureate International College
Space Flight to the Stars - Laureate International College

... sizes.  Beyond the asteroid belt lie the four gas giant planets: Jupiter, Saturn, Uranus, and Neptune. ...
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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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