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The Solar System

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vanessa abbinante

on 4 June 2013

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Transcript of The Solar System

The Solar System Planets Constellations Star Clusters Formation of the Solar System (planets, stars, sun) Nebulae BY Vanessa Abbinante Galaxies The End A Galaxy is a gravitationally bound system consiting of Stars, Stellar remnants, an instellar of gas and dust. Bibliography

http://en.wikipedia.org/wiki/Galaxy
http://en.wikipedia.org/wiki/List_of_galaxies
http://science.nasa.gov/astrophysics/focus-areas/what-are-galaxies/
http://en.wikipedia.org/wiki/Star_cluster
http://www.sciencedaily.com/articles/s/star_cluster.htm
http://www.universetoday.com/78112/star-cluster/
http://nineplanets.org/
https://en.wikipedia.org/wiki/Planet
http://stars.astro.illinois.edu/sow/const.html
http://ancienthistory.about.com/od/greeceastronomy/f/062711-What-Are-The-Names-Of-The-Constellations-In-Latin.htm
http://www.iau.org/public/constellations/
http://astro.nineplanets.org/twn/types.html
http://www.seasky.org/celestial-objects/nebulae.html
http://en.wikipedia.org/wiki/Formation_and_evolution_of_the_Solar_System
http://www.windows2universe.org/our_solar_system/formation.html
http://www.universetoday.com/15567/formation-of-the-solar-system/
http://www.universeformation.org/
http://astronomy.swin.edu.au/sao/downloads/HET624-M14A01.pdf
http://www.space.com/13320-big-bang-universe-10-steps-explain The word Galaxies in Greek: galaxias means "milky" a reference to the "The Milky Way". Also the Milky Way's appearance has a lighter colour band in the sky. Formation about the universe (Big Bang) The Galaxies is estimated to be formed around 380 million years ago. There's about 170 billion Galaxies in the universe. The Milky Way, has hundreds of billions of stars. It has enough gas and dust to make more than a billion of stars. It gets at least ten times dark matter as the stars and gas are put together. This is all held by gravity. The Milky way has a spiral shape, at the centre of the spiral there is a lot of energy and sometimes some vivid flares are being generated. Other Galaxies have elliptical shapes. Some have unusual shapes. For example they look lke toothpicks or rings. After the Big Bang, the universe was composed of radiation and subatomic particles. Star Clusters are also known as Star Clouds that are groups of stars. This is what a Galaxy looks like Two types of Star Clusters can be distinguished as, Globular Clusters and Open Clusters. Globular Clusters are tight groups of thousands of very old stars. Open Clusters are more looser clustered groups of stars. Open Clusters have fewer than a few hundred stars and they are usually younger stars. Star Clusters are groups of stars which are gravitationally bound When Stars are born they are developed from large clouds of molecular gases. Some examples of Star Clusters that we would be able to see are Pleiades, Hyades, the Beehive Cluster and the Star Nursery within the Orion Nebula. This is what a Star Cluster would look like All of the 8 planets have been seen through a small Telescope or seen through Binoculars The IAU has changed the definition of a "planet". The planet they used to call Pluto no longer exists. There are now officially 8 planets in our whole Solar System A Planet in Ancient Greek means wandering star. The word Planet is very ancient, which ties to History, Science, Mythology, and Religion. If you don't already know this, these are the planets in order from the sun: The Sun Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune Constellations are named patterns of stars. Constellations that populate our sky today began in the middle east about a thousand years ago. During the Roman times the Constellations were given Latin names. The Constellations play a very important role in our modern astronomy. They would divide up in the sky into smaller segments, providing something for naming celestial objects. Many Constellations are often called "asterisms" are more often to be learned about first. There are 48 original Constellations made by a Greek Astronomer named Ptolemy The Constellations were defined originally by their shapes which made their star patterns. But in the early 20th Century, astronomers decided that they would give each of the Constellations an official name. These are two of what Constellations would look like. The word Nebulae is reserved for gas and dust and not for stars. The word Nebulae means "cloud". A Nebulae is a cloud of gas and dust floating around space. The stars inside the clouds of gas cause them to glow nice colours of reds, greens, and blues. Here are some pictures of what a Nebulae looks like. The formation of the Solar System is estimated to have begun about 4.6 billion years ago. The Solar System was formed by a gravitational collapse from a small part of a giant molecular cloud Most of the mass that had collapsed had formed into the sun, while the rest had flattened into a disk, which are the planets, moons, asteroids, and other Solar System Body's that have formed. Scientists believed that an explosion of a near by star made the Cloud of gas and dust to be separated from each other. The planets had started out as tiny specks of dust that had clumped together. When they started to get more bigger they become pebbles, rocks, boulders and eventually planetoids. The planetoids eventually violently collide together to become the planets that we all know today. Over a billion years ago all of the other galaxies had disappeared over the Horizon from a very large galaxy. The Big Bang had given the universe an age of 13.7 Billion years. The first 38,000 years of the universe, the density and temperature of particles where really high. 300,000 years after the Big Bang was filled with hot plasma. According to the Big Bang the universe started out small, hot and dense. When the universe was very young and still was small it gradually got bigger and expanded 90 times in size. Astronomers searched through the universe looking for the farther and oldest galaxies to help them have a better understanding of how the universe was created in the first place. The Solar System is estimated to have appeared just over 9 billion years after the Big Bang. And lastly this is what the universe looks like
with a black hole.
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