Our Solar System - Our Solar System Click to edit Master...

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Click to edit Master subtitle style Our Solar System
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The Sun
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Mercury
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Venus
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Earth
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Mars
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Jupiter
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Saturn
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Uranus
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Neptune
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Asteroid and Comets
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Apophis 99942 Scheduled to pass nearby in 2029 And again in 2036 Chance of impact - ~1/100 of a percent Energy of impact ~900MT
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Makeup of the Solar System Sun Terrestrial Planets Jovian Planets Asteroids Comets
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Terrestrial Planets Mercury, Venus, Earth, Mars Rocky surfaces, metallic interiors. Few large moons
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Jovian Planets Jupiter, Saturn, Uranus, Neptune Also called Gas Giant Planets Made up mostly of hydrogen, helium, and hydrogen compounds. Rings and many moons.
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Organization of the Solar System Most everything orbits in roughly the same plane and in the same direction, and most everything spins in the same direction it orbits!
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I said MOST planets rotate in same direction as their orbits around Sun
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The Fetal Solar System
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Origin of the Solar System Our theory must explain the data 1. Large bodies in the Solar System have orderly motions. 2. There are two types of planets. small, rocky terrestrial planets large, hydrogen-rich Jovian planets 3. Asteroids & comets exist in certain regions of the Solar System 4. There are exceptions to these patterns.
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Origin of the Solar System Nebular Theory – our Solar System formed from a giant, swirling cloud of gas & dust called the solar nebula. Depends on two principles of Physics: Law of Gravity gravitaional potential energy heat Conservation of angular momentum and Basic chemistry
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Gravitational Collapse The solar nebular was initially somewhat spherical and a few light years in diameter. very cold rotating slightly It was given a “push” by some event . perhaps the shock wave from a nearby supernova
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Our Solar System - Our Solar System Click to edit Master...

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