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A History of the Solar System Model

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T.S. Eliot
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My Class Project

The search for truth has motivated humanity since our beginning. While our methodology has been refined with time, it is rewarding to remind ourselves of our first attempts at understanding the systems around us. The movement of the celestial bodies offers a compelling anthology of this progression in science. Early humanity’s desire to catalogue astronomical phenomena is apparent in the lunar calendar markings left over 34,000 years ago(Dishough). In my project, I wish to present a far-from-complete timeline of solar system models in western culture. I chose to focus on the designs I considered to be historically important, with addendums of major discoveries that altered the model.

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Timeline Pieces

The complete timeline:

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Anaximander of Miletus 

611 - 546 BC

  •  The first model of the solar system. 

  • Features Earth (not known to be a sphere at the time)

  • Large Iron sphere and ring of fire. 

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Philolaus of Samos

470 -359 BC

  • Second model of the solar system.

  • Central fire (always opposite of inhabited side of Earth so humans would never see it)

  • Counter Earth, also never visible. 

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Aristotle of Greece

384 - 322 BC 

the third model of the solar system

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Continuation of time line:

Next three:

Aristarchus of Samos

310 - 230 BC

  • the fourth model if the solar system

  • Heliocentric

  • Mostly lost in Burning of Library

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Ptolmey 

90 - 168 AD 

The longest lasting model to date (number one model for nearly 1,800)

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Copernicus

1473 - 1543 AD

  • Reestablished heliocentric model 

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Continuation: 

The next three models 

Fredrick W. Herschel 

1738 - 1822 AD

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  • Addition of Uranus (not named until 1850)

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Adams, Le Verrier & Galle 

September 23, 1846

  • Addition of Neptune: the planet discovered with Math

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Clyde Tombaugh

February 18 1930

The addition of Pluto to the model

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