Related terms:
kepler
galileo
ptolemy
planets
copernican
parallax
copernicus
ptolemaic
geocentric
pythagoreans
planetary
heliocentric
celestial
astronomy
gravitation
aristotelian
planetary model
isaac newton
ptolemaic system
galileo galilei
retrograde motion
heliocentric model
observations
astronomical
heliocentric system
solar system
nicolaus copernicus
ancient greek
laws of planetary motion
astronomical observations
Wikipedia sources:
Geocentric model
Heliocentrism
Galileo Galilei
History of astronomy
Scientific revolution
Context for words:
geocentric
model
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