HISTORICAL MODELS OF THE SOLAR SYSTEM

BACKROUND

• The solar system is the sun and all of the bodies theta orbit the sun.
• In the heliocentric model, earth and the other planets orbit the sun.
• Earth centered means geocentric

ARISTOTLE

• Aristotle wasa Greek philosopher
• He beloved that earth was the center to all things
• His model had moon sun and planets all surrounding the earth
• 384-322 BCE

ARISTARCHUS

• Was a Greek astronomer and mathematician
• He proposed a heliocentric model of the solar system
• His model was not widely accepted at first
• He used observation and geometry to solve a scientific problem
• 310-230 BCE

PTOLEMY

• He was a astronomer and mathematician that lived in egypt
• He wrote a book Almagest one of the few books written in this time
• It was based off of observation of the planets
• He made a model that astronomers used for the next 14 centuries