The Solar System SCI/151 Astronomy 1
Dec 27, 2015
The Solar System
SCI/151Astronomy
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Big Bang Theory
HOW THE SOLAR SYSTEM IS FORMED?
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Mantle
• Upper- Lithosphere
• Lower- Asthenosphere
Crust
Inner Core
Outer Core
The Earth’s Cross-Section
The Geology & Atmosphere of the Earth
Mesosphere
Stratosphere
Ionosphere
Troposphere
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Terrestrial Planets
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Terrestrial Planets
• Few moons and have no existent rings
• Close to the Sun
•Metal and rock
• Little in both mass and size
Geology & Atmosphere of Terrestrial Planets
Geology
Atmosphere
o Volcanic and tectonic activities are primarily caused by internal heat from radioactive decay.
o Staying geologically active today are large planets which can retain enough internal heat.
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Objects in the Solar System
Natural Satellite’s Comets
Mercury - 0 Venus - 0 Earth - 1 Mars - 2 Jupiter - 62 Saturn - 33 Uranus - 27 Neptune - 13 Pluto - 1
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Objects in the Solar SystemAsteroids Meteors NEO asteroids
Near Earth Objects Minor planets
Asteroids are very small to be considered as planets
Fireballs Very rare meteors that are
very bright and have the highest chance to explode.
Meteoroids These are asteroids that
are in the course of collision towards the earth.
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Earth in comparison with Mars and Exoplanet 51 Peg
Mars 51 peg B
half of Earth’s diameter
Atmospheric pressure Oxygen level Volcanoes Ozone layer Surface area Moons
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• Atmosphere• Yellow hue• Orbit• Jovian
• Hot
Earth in comparison withasteroids and comets
Asteroids comets
Numbers
Orbit
Location
Composition
Size/Shape
Temperature
Orbit
Composition
Size
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References
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Bennett, J. O., Donahue, M., Schneider, N. O., & Voit, M. (2010). The cosmic perspective (6th
ed.). Boston, MA: Addison Wesley.
IMAGE SOURCE PAGE:
http://hendrix2.uoregon.edu/~imamura/121/lecture-7/lecture-7.html
Edin, H. (2008). Okie Tex Star Party. Retrieved from:
http://living-creatures.blogspot.com/2008/10/bright-bolide.html
International Space Fellowship (2002). A long-period Comet:
http://spacefellowship.com/news/art11239/crashing-comets-not-
likely-the-cause-of-earth-s-mass-extinctions.html
Prado, M. (2012). Utilization of Asteroids Near Earth. Retrieved from:
http://www.permanent.com/near-earth-asteroids-overview.html
Space Today (2012). Moons of the Solar System. Retrieved from:
http://www.spacetoday.org/SolSys/Moons/MoonsSolSys.html
51 Pegasi. Retrieved from:
http://en.wikipedia.org/wiki/51_Pegasi
References Dynamic Earth. Retrieved from: http://www.learner.org/interactives/dynamicearth/structure.html
Earth’s Atmosphere. Retrieved from:
http://csep10.phys.utk.edu/astr161/ lect/earth/atmosphere.html
51 Peg B. Retrieved from:
http://www.extrasolar.net/planettour.asp?PlanetID=1
Mars. Retrieved from: www.space.com/47-
mars-the-red-planet-fourth-planet-from-the-sun
Asteroid. Retrieved from:
nssdc.gsfc.nasa.gov/photo_gallery/photogallery-asteroids.html
Comet. Retrieved from:
starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level2/comets.html
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