The first person to promote the idea of the Heliocentric theory was Philolaus, a Pythagorean philosopher.
The first "scientist" was Nicolaus Copernicus. He used his teacher's, Tycho Brahe precise measurements to help formulate how the stars moved in the sky and found that the sun moved much faster relative to everything else. He then explained away the movement by applying the Sun as the center of our solar system.
Nicolaus Copernicus was the first scientist known to widely promote the heliocentric theory in his book "On the Revolutions of the Celestial Spheres" published in 1543. He proposed that the Earth and other planets revolved around the Sun, challenging the geocentric view that the Earth was the center of the universe.
Nicolaus Copernicus put forward a heliocentric theory.
The heliocentric theory was first published by Copernicus.
Aristarchus of Samos was the Greek scientist who first proposed a heliocentric view of the universe, suggesting that the Earth revolves around the Sun. This idea was revolutionary for its time and laid the foundation for later heliocentric models developed by Copernicus and Galileo.
Copernicus.
The earliest known proposal that the Sun was at the center of our solar system while the planets moved around it was by Aristarchus of Samos, a Greek mathematician and astronomer who lived in the 3rd century BC. (Others may have proposed it earlier, but no reference to them remains after 2400 years.) However, the views of Aristotle proved easier to accept. It wasn't until Copernicus developed the same theory (probably independently) based on more accurate and complete observational data that the heliocentric view of the solar system was widely accepted.
Orville Vandershmoot
Nicolaus Copernicus put forward a heliocentric theory.
The heliocentric theory was first published by Copernicus.
Aristarchus of Samos was the Greek scientist who first proposed a heliocentric view of the universe, suggesting that the Earth revolves around the Sun. This idea was revolutionary for its time and laid the foundation for later heliocentric models developed by Copernicus and Galileo.
Galileo Galilei . He only helped support the theory through his observations , he didn't invent the model, Copernicus did.
Aristarchus of Samos was the first person (that we know of!) that proposed a heliocentric model of the universe, as early as about 200B.C). His model was rejected mainly because of Aristotle's influence.Copernicus was the next person to propose a heliocentric model of the universe which was published in 1547. although very controversial at that time, this model was the one that caught on.
Nicolaus Copernicus, a Polish mathematician and astronomer, was the first scholar in the 16th century to propose the heliocentric theory in his book "De revolutionibus orbium coelestium" published in 1543.
This is known as the heliocentric theory, first proposed by Aristarchus two millenia ago.
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.
Nicholaus Copernicus was one of the first to challenge the theory that the earth was the center of the universe. He made up the Heliocentric theory.
It is believed that Nicolaus Copernicus first proposed the heliocentric theory.
Nicolaus Copernicus was the first astronomer to formulate a scientifically-based heliocentric cosmology that displaced the Earth from the center of the universe. So yes I guess you can say he was a scientist.