Copernicus produced the first heliocentric theory in 1543. It used circles and epicycles, like the ancient Ptolemaic theory that had the Earth at the centre.
Later after accurate measurements by Tycho, Kepler discovered that a better model for a planet's orbit would be an ellipse with the Sun at one focus. His theory came out in 1609.
No-one knew which of the theories was right except that Kepler's was a little more accurate. But in the late 1600s Newton came up with discoveries that confirmed that Kepler's theory was consistent with new physical theories. This is the model used now.
It was Claudius Ptolemy, 98-160. His Ptolemaic system describing the planets' movements among the stars was generally accepted for about 1400 years. Until the computer age, the Ptolemaic model was also used in planetariums.
The astronomer credited with the first comprehensive theory of the heliocentric model, where planets orbit around the Sun, is Nicolaus Copernicus. In his seminal work, "De revolutionibus orbium coelestium" published in 1543, Copernicus proposed that the Sun is at the center of the universe, challenging the long-held geocentric view that placed the Earth at the center. His ideas laid the groundwork for future astronomers, including Galileo and Kepler, who further developed and supported the heliocentric theory.
it was geilo i dont know his last name but if youu know him than well i dont know check your books kids.
Nicolaus Copernicus was the astronomer who first proposed the heliocentric model of the solar system, where the Earth and other planets revolve around the Sun. His work "On the Revolutions of the Celestial Spheres" laid the foundation for modern astronomy.
Johannes Kepler, a German astronomer, discovered that planets follow elliptical orbits around the Sun, rather than perfect circles. This discovery is known as Kepler's first law of planetary motion and was a significant advancement in our understanding of the solar system.
Aristarchus of Samos
The astronomer credited as the first to theorize that the planets orbit around the Sun (heliocentrism) is Nicolaus Copernicus. He developed the heliocentric model of the solar system, which proposed that the Sun was at the center and the planets, including Earth, revolved around it in circular orbits. This theory was a departure from the earlier geocentric model, which posited that Earth was at the center of the universe and everything orbited around it. Copernicus's work laid the foundation for the modern understanding of the solar system's structure and motion.
It was Claudius Ptolemy, 98-160. His Ptolemaic system describing the planets' movements among the stars was generally accepted for about 1400 years. Until the computer age, the Ptolemaic model was also used in planetariums.
The astronomer credited with the first comprehensive theory of the heliocentric model, where planets orbit around the Sun, is Nicolaus Copernicus. In his seminal work, "De revolutionibus orbium coelestium" published in 1543, Copernicus proposed that the Sun is at the center of the universe, challenging the long-held geocentric view that placed the Earth at the center. His ideas laid the groundwork for future astronomers, including Galileo and Kepler, who further developed and supported the heliocentric theory.
Nicolaus Copernicus discovered why planets stay in orbit when he found that the planets revolve around the sun. He is credited with starting the Scientific Revolution through this discovery.
it was geilo i dont know his last name but if youu know him than well i dont know check your books kids.
Copernicus
Nicolaus Copernicus was the astronomer who first proposed the heliocentric model of the solar system, where the Earth and other planets revolve around the Sun. His work "On the Revolutions of the Celestial Spheres" laid the foundation for modern astronomy.
leshontae missick
Nicolaus Copernicus, a Polish mathematician and astronomer, proposed the heliocentric model in the 16th century, stating that the planets, including Earth, orbit around the Sun. This model replaced the geocentric model that had Earth at the center of the universe.
Johannes Kepler, a German astronomer, discovered that planets follow elliptical orbits around the Sun, rather than perfect circles. This discovery is known as Kepler's first law of planetary motion and was a significant advancement in our understanding of the solar system.
He is a danish astronomer who stated that all the planets revolve around the sun in elliptical orbits and that the sun is not in the exact center of the orbit.