famous astronomers

Aristotle

• he thought that everything was a sphere except for earth
• he thought that the earth was the centre of the solar system
• He thought that it would be a simpler concept for people to understand

ARISTARCHUS

• sun in the center
• rotates on axis
• based off of Copernicus's theory
• Greek mathmition

Ptolemy

• orbits around earth
• could see stars and planets with the maker eye
• studied all the time
• found without with access

Copernicus

• sun in the center
• tried to figure out sizes
• took studies seriously
• intro-ed new ideas

Kepler

• went to collage
• math specialist
• studied specific planets
• studied the orbit(s)

Galileo

• improved telescope
• was called the "father of modern observational astronomy"
• could observe phases of planets
• made different tools to learn about the solar system

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