Nicholas Copernicus 1473-1543 was a Polish priest and astronomer who created an alternative model of the planets, known as the heliocentric theory, which put the Sun at the centre, instead of the Earth as generally accepted at that time.
He knew it would get him into trouble with the church, and his book 'De Revolutionibus' was not published until the year he died. The theory with the Sun at the centre was similar to the old Ptolemaic system with its collection of circles and epicycles allowing for the changes in distance and the changes in planets' speeds, and their departure from the ecliptic.
His theory was taken up by Galileo in a famous dispute with the church. At around the same time Tycho Brahe made new more accurate observations of the planets from Denmark, and these were used by Johannes Kepler to produce a new model published in 1609.
Kepler's model is the one we use today, and it has the Sun at the centre, like the Copernican model, but all the other details of Copernicus's theory were rejected in favour of elliptical orbits.
copernicus coined the heliocentric theory...
Copernicus discovered the heliocentric theory in 1510 and worked on it for four more years.
Nicolas Copernicus
Nicolaus Copernicus
He was a Polish mathematician who disagreed with Ptolemy's view that the earth is the center of the universe. The heliocentric theory is the theory that the sun is the center of the universe, not the earth.
copernicus coined the heliocentric theory...
The heliocentric theory is the theory that the sun is the center of the universe, not the earth.
Copernicus discovered the heliocentric theory in 1510 and worked on it for four more years.
Nicolas Copernicus
heliocentric theory
Nicolaus Copernicus challenged the geocentric theory and presented the heliocentric theory. The heliocentric system placed the sun at the center of the universe.
Copernicus
heliocentric theory
Nicolaus Copernicus
Nicolaus Copernicus
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 heliocentric theory was originated by Copernicus.