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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