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Famous Astronomers

Published on Nov 20, 2015

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PRESENTATION OUTLINE

1.

ARISTOTLE

  • He thought that the earth went around the sun
  • Then the relative positions of the stars would change as earth moves
  • He lived from 384-322 BCE
2.

ARISTARCHUS

  • Tried to measure distance to moon and sun
  • Lived from 312- 230 BCE
Photo by James Niland
3.

CLAUDIUS PTOLEMY

  • Geocentric model
  • He used motions for plants
  • Lived from 100-170 AD
Photo by blmiers2
4.

GEOCENTRIC MODLES

  • Earth in the middle
  • With other plants orbiting it
Photo by Arjan Richter
5.

HELIOCENTRIC MODAL

  • The newer model where the sun is in the middle
6.

GALILEO

  • Improvements with the telescope
  • His findings showed that earth was not the only object that could be orbited
  • He lived from 1564-1642
Photo by gnuckx
7.

KEPLER

  • Lived from 1571-1630
  • Was a german mathematician
  • The distence from the plant to the sun
Photo by VinothChandar
8.

PTOLEMY

  • He lived in Alexandria, egypt
  • Developed the geocentric model
  • Lived from 100-170 CE
Photo by Scarleth White
9.

COPERNICUS

  • Developed the first heliocentric model of the solar system
  • Lived from 1473-1543
  • He used wheels on wheels system

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