=Phytagoras=
Aristotle first thought that the Earth was the center of the solar system. Ptolemy was the second one to think of the theory.
He was the guy who first thought the earth was the center of the universe
Aristotle was the first the theorize that Earth was the center of the solar system.
It was Galileo. He first thought thet the earth was revolving around the sun, but others didn't believe him because they thought that God created the world as the center. He made a telescope and proved to everyone that the solar system is following the geometrical system, the Earth revolving around the Sun.
Ptolemy.
Aristotle did not believe that the Sun was at the center; he thought Earth was. Aristarchus, a Greek astronomer, is probably the earliest person we know of who supported a heliocentric solar system.
they are both greek astronomers that first thought the sun was the center of our solar system
He was the first astronomer to formulate a scientifically-based heliocentric cosmology that displaced the Earth from the center of the universe.
Copernicus was the first to propose the Heliocentric theory, the correct theory that the Sun, not the Earth, is the center of the solar system.
The first person (that we know of!) to say that the Sun is in the center of our solar system and that the Earth goes around the Sun was Aristarchus of Samos, a Greek astronomer and mathematician about 2400 years ago.
I believe the first person to position the sun at the center of our solar system was Copernicus during the Renaissance, Years before this many astronomers believed that the Earth was the center of the Universe.
His mathematics. He was the first person since the Greeks who put the sun at the center of the solar system instead of the Earth.