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Nicholas Copernicus 1473-1543 was a Polish priest and astronomer who created an alternative model of the planets 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.
In the late 1500s 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.

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How did Kepler disagree with Copernicus?

Kepler disagreed with Copernicus on the shape of planetary orbits. Copernicus believed in circular orbits, while Kepler's observations led him to propose elliptical orbits. Kepler's laws of planetary motion refined and corrected some of the assumptions in Copernicus' heliocentric model.


What did Copernicus not reject?

Copernicus did not reject the idea that planetary orbits around our Sun were circular.


Keplers law that describes how fast planets travel at different points in their orbits is called the law of?

Kepler's law that describes how fast planets travel at different points in their orbits is called the Law of Equal Areas. This law states that a planet will travel faster when it is closer to the Sun and slower when it is farther away, so that the area it sweeps out in a given time is the same regardless of its distance from the Sun.


Who was the astronomer that realized the sun does not orbits the earth?

It is believed that Nicolaus Copernicus first proposed the heliocentric theory.


Did Copernicus believed the orbits of planets were round?

Yes, Nicolaus Copernicus believed that the orbits of planets were circular. In his heliocentric model, which proposed that the Sun is at the center of the universe with the planets, including Earth, orbiting around it, he adhered to the ancient Greek idea that celestial motions should be perfect and circular. However, he later acknowledged some imperfections in the orbits, leading to adjustments in his model. Despite this, his foundational belief in circular orbits remained a significant aspect of his work.

Related Questions

How did Kepler disagree with Copernicus?

Kepler disagreed with Copernicus on the shape of planetary orbits. Copernicus believed in circular orbits, while Kepler's observations led him to propose elliptical orbits. Kepler's laws of planetary motion refined and corrected some of the assumptions in Copernicus' heliocentric model.


How did keplers work improve on or support Copernicus heliocentric theory?

Kepler completely replaced Copernicus's theory of the orbits of the planets, which was based on circles an epicycles, with a new theory using elliptical orbits. However Kepler retained Copernicus's idea of placing the Sun at the centre.


Concerning the planetary orbits why was Copernicus somewhat inaccurate?

He suggested the orbits were circles.


What did Copernicus not reject?

Copernicus did not reject the idea that planetary orbits around our Sun were circular.


Astronomer who realized the earth orbits th sun?

copernicus


How did Kepler expand on Copernicus' ideas?

Kepler showed that planetary orbits were actually ellipses, not circles as proposed by Copernicus.


How did Kepler's work improve on or support Copernicus' heliocentric?

Kepler completely replaced Copernicus's theory of the orbits of the planets, which was based on circles an epicycles, with a new theory using elliptical orbits. However Kepler retained Copernicus's idea of placing the Sun at the centre.


What is the difference between Copernicus and Kepler description of planetary orbits?

Kepler realised the planets orbits are not circles; they are ellipses.


How did Kepler's work improve on or support Copernicus's heliocentric theory?

Kepler completely replaced Copernicus's theory of the orbits of the planets, which was based on circles an epicycles, with a new theory using elliptical orbits. However Kepler retained Copernicus's idea of placing the Sun at the centre.


Kepler's first law worked where Copernicus' original heliocentric model failed because Kepler described the orbits as?

Copernicus's theory did not fail but it was not as accurate as the Kepler model because it did not include elliptical orbits for the planets, as Kepler's model did. However the data for calculating the elliptical orbits did not become available until well after Copernicus's death so he had no chance of knowing about this change. Copernicus's model which used circles and epicycles was accurate to the standard of the observations that were available to him.


Which scientist published a book in the 1500s giving evidence the Earth orbits the sun?

Copernicus


What did Copernicus' contribute to the scientific revolution?

He proposed a Heliocentric system- that Earth orbits the sun.