PRESENTATION OUTLINE
TRISTEN'S ASTRONOMERS TIMELINE
Aristotle
384 BCE - 322 BCE
He created a system of the sun, planets, moon, and stars in a circle around the earth.
Aristarchus
310 BCE - 230 BCE
HE PROPOSED A HELIOCENTRIC MODEL OF THE SOLAR SYSTEM.
Ptolemy
90 AD - 168 AD
He developed a earth centered solar system theory.
Nicolaus Copernicus 1473-1543
He developed a heliocentric model of the solar system
Johannes Kepler 1571-1630
He made the three planetary motion laws.
Galileo Galilei
1564-1642
He discovered mountains and craters on the moon, the phases of Venus, and four of Jupiter's largest satellites.
Sir Isaac Newton 1643-1727
He developed theories of gravitation and mechanics.
Edwin Hubble
1889-1953
He was the first to measure to other galaxy's, he also created the Hubble law.
