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Solar System Basics

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Solar System Basics Sun Inner Planets Asteroids Outer Planets Kuiper Belt & Oort Cloud Comparisons Inner vs. Outer Planets Asteroids vs. Comets Formation of Our Solar ... – PowerPoint PPT presentation

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Title: Solar System Basics


1
Solar System Basics
2
Sun
3
Inner Planets
Venus
Mercury
Earth
Mars
4
Asteroids
5
Outer Planets
Jupiter
Saturn
Uranus
Neptune
6
Kuiper Belt Oort Cloud
7
Comparisons
Inner Planets vs. Outer Planets
Asteroids vs. Comets
8
Inner vs. Outer Planets
Surface Sur. Composition Mass Density Atmosphere
Atm. Composition Magnetic field Rotation
rate Moons Rings
9
Asteroids vs. Comets
General Planetesimal Properties Asteroid Feature
Comets Rock and metal Surface Ice and
rock Between Mars Jupiter Main
Location Beyond Neptune Yes Moons Unknown 0
to 630 miles Size (diameter) 0 to 1500
miles???
10
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11
Formation of Our Solar System
The Solar Nebula Theory
12
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13
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14
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16
A Star is Born
  • After the core of the Sun ignited its nuclear
    fusion reaction, the lighter material like dust
    and gas was blown away into the outer solar system

17
Clearing the Inner Solar System
  • Solar Wind The Sun is constantly sending a
    stream of material (mostly hydrogen gas) outward
    at 0.5 to 2.0 million mph. This wind carries the
    lighter material out to the outer solar system
  • Radiation Pressure The intense light of the Sun
    exerts pressure on the lighter material sending
    it outward into the outer solar system

18
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20
Heavy Bombardment
21
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22
Main Asteroid belt
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29
Kuiper Belt
  • The Kuiper Belt consist of the comets that
    formed from the same disk that formed the planets
    4.6 billion years ago. This group of objects is
    the source of the short orbit comets. Orbital
    periods gt200 years.

30
Kuiper Belt
31
Kuiper Belt
  • This is not entirely accurate. The spacing
    between these comet nuclei are millions of miles.
    Once in a while these cold, frozen objects are
    disturbed and get sent into the inner solar
    system where they develop a coma and sprout a
    long tail of gases and dust

32
Kuiper Belt
  • Notice the size of these objects compared to
    the Earth!

33
Kuiper Belt
34
Oort Cloud
  • The Oort cloud is not part of the material that
    made it into the disk so these objects have
    random orbits that cross the plane. Their orbit
    can be more than 50,000 years and may appear from
    anywhere

35
Kuiper Belt
36
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37
Scale Size Comparison
38
Scale Size Comparison
39
Scale Size Comparison
40
Scale Size Comparison
41
Scale Size Comparison
42
Scale Size Comparison
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