The first astronomer to dispute the model seriously was Nicholas Copernicus in the 1500s. His model used circles and epicycles, like the old Ptolemaic model, but had the Sun at the centre, which led to its being named the heliocentric model.
Sixty years after his death in 1543, the Copernicus model was taken up by Galielo in his dispute with the Catholic church.
In the latter half of the 1600s further discoveries led to wider acceptance of the heliocentric concept. However the rest of the Copernicus model was discarded and replaced by Kepler's model which had each planet in an elliptical orbit, and this was taken up and given scientific credibility by the discoveries of Newton and others.
Though many accepted the geocentric model of the universe, it was designed by the famous astronomer Ptolemy.
The Greek astronomer Claudius Ptolemy believed that Earth was at the center of the universe in his geocentric model, which was widely accepted in the ancient world. This view held sway until the heliocentric model proposed by Copernicus in the 16th century challenged it.
Ptolemy.
Claudius Ptolemy, an ancient Greek astronomer, developed the geocentric model of the universe known as the Ptolemaic system. In this model, Earth is at the center of the universe, with the Sun, Moon, planets, and stars all revolving around it.
The geocentric theory was developed by ancient Greek philosophers, primarily by Ptolemy in the 2nd century AD. This theory posited that the Earth was the center of the universe around which all other celestial bodies revolved.
Nicolaus Copernicus < NOVA NET ANSWER
Nicolaus Copernicus < NOVA NET ANSWER
Nicolaus Copernicus < NOVA NET ANSWER
Nicolaus Copernicus < NOVA NET ANSWER
Ptolemy
Ptolemy
The first scientist to dispute the geocentric model of the universe, which posited the Earth at the center, was Nicolaus Copernicus. In the early 16th century, he proposed the heliocentric model, which placed the Sun at the center of the universe, challenging the long-held views of Aristotle and Ptolemy. His seminal work, "De revolutionibus orbium coelestium," published in 1543, laid the foundation for modern astronomy and shifted the paradigm of celestial mechanics.
The first scientist to dispute Ptolemy's geocentric model was Nicolaus Copernicus. In the early 16th century, Copernicus proposed a heliocentric model, placing the Sun at the center of the universe and suggesting that the Earth and other planets revolve around it. His work, particularly the publication of "De revolutionibus orbium coelestium" in 1543, laid the groundwork for the Scientific Revolution and fundamentally changed our understanding of the cosmos.
Nicholas Copernicus did
Geocentric -- ie, the Earth is at its center.
Copernicus.
Though many accepted the geocentric model of the universe, it was designed by the famous astronomer Ptolemy.