He looked through his telescope!
When did Copernicus write his book on the solar system?
heliocentric system
heliocentric system
Nicolaus Copernicus.
Copernicus
Nicolaus Copernicus proposed the heliocentric model of the solar system in his book "De Revolutionibus Orbium Coelestium" in 1543, which suggested that the sun, not the Earth, was the center of the solar system.
the sun is the center of the solar system.
he founded the solar system
copernicus
He followed Copernicus's model of the solar system which places the Sun at the center of the solar system instead of the Earth.
In the early 16th Century, Nicolaus Copernicus theorised that the Sun was in fact the centre of our solar system - not the Earth, as was previously thought. The Greek Aristarchus of Samos, 1,800 years before Copernicus, was the true founder of heliocentrism.
From about 1510-1514 Copernicus developed his first general outline of his new heliocentric system.