Astronomers
Published on Nov 23, 2015
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PRESENTATION OUTLINE
Heliocentric model
A model of the solar system were the sun is the center of the solar system
Aristarchus
310-230 BCE
Attempted to mesure the distance to the moon and sun. He also proposed the heliocentric model of the solar system
Geocentric solar system model
Ptolemy thought that the earth was the center of the solar system.
Aristotle
384-322 BCE
He thought of the idea that the sun and moon orbit the Earth. And discovered the earth is round.
Photo by Suzan Marie
Aristarchus
310-230 BCE
Attemted to measure the distance from the earth to the sun and the moon to te sun.
PTOLEMY
100-170 CE
He thought that every thing revolved around the Earth. Ptolemy created a geocentric model that was used for 14 centuries
Photo by williamcromar
Copernicus
1473-1543
He believed that all the planets revolved around the sun. He also created the modern model of the solar system
Kepler
1571-1630
He discovered that planets move faster when closer to the sun and the father out the longer it take to get around the sun.
Photo by Vanderelbe.de
Galilei
1564-1642
He invented the telescope and the scientific method . He also discovered that Venus went through phases like the earths moon
Photo by Rob Unreall
