Copernicus

Galileo used more advanced technology to find stronger observational evidence than Copernicus was ever able to provide.

he provided observational something

he used mathmadics to show the sun...

this hopefuly helped if you were in apex

The only part of Copernicus's theory that Kepler retained was the idea that the Sun is at the centre of the Solar System.

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.

Copernicus devised a new model of the planets' movements among the stars. To do this he made modifications to the ancient Ptolemaic system.

Copernicus considered that the ancient model was geometrically complicated and that it could be simplified very much by placing the Sun at the centre, instead of the Earth.

This was controversial because the Ptolemaic model had been around for well over 1000 years and had been incorporated into the scriptures, and it was believed the Earth is at the centre. Not only was it believed but it was also religious dogma.

In the end Kepler came up with a new model of elliptical orbits that was shown to be right many years later after the law of gravity and the laws of motion had been discovered. Kepler's theory is the one that is still in use today.

Kepler's theory retained Copernicus's idea of placing the Sun at the centre, so Copernicus was proved right in the end, although during Copernicus's lifetime he had no way of knowing it.

Both systems have the Sun at the centre, but Copernicus stuck to the ancient model of circles and epicycles to explain the planets' orbits.

Kepler on the other hand used new measurements by Tycho Brahe to suggest, after a lot of detailed calculations, that the planets move in elliptical orbits.

The difference between an ellipse and a circular orbit with an epicycle is extremely small in the case of planetary orbits which have a low eccentricity factor. It was not until Tycho came along that measurements of sufficient accuracy were available for Kepler to make his discovery.

Later the elliptical orbits were explained theoretically, after the discovery of the law of gravity and the laws of motion. This eventually led to Kepler's theory being generally accepted as right, which it still is.

Copernicus's system used circles and epicycles, just like the ancient Ptolemaic system, with the difference that by placing the Sun at the centre Copernicus could simplify the complicated paths taken by the planets through space.

Kepler had the advantage of new accurate observations made by Tycho Brahe at the end of the 16th century, and these enabled Kepler to realise that by using elliptical orbits for the planets, the modelled positions could be fitted more closely with the measured positions.

Kepler retained the idea of having the Sun at the centre and it is the model used today with slight modifications from Einstein's theory of relativity.

People at the dark ages, were taught that the earth was the middle and the sun circled around it. Copernican heliocentrism is the name given to the astronomical model developed by Nicolaus Copernicus and published in 1543. It positioned the Sun near the center of the Universe, motionless, with Earth and the other planets rotating around it in circular paths modified by epicycles and at uniform speeds.

Kepler's model of 1609 was more accurate than Copernicus' model of 1543 because it provided a more accurate fit to measurements of the planets' positions made by Tycho Brahe at the end of the 1500s. However, both models predicted the planets' positions fairly accurately, as did the ancient theory produced by Claudio Ptolemy (90-168).

Kepler's model, which has the planets in elliptical orbits, became accepted as right after it was later demonstrated that the elliptical orbits were the result of the newly discovered law of gravity. Kepler's model is used today.

His views went against traditional beliefs, including those of the Roman Catholic Church.

Copernicus received a printed copy of his treatise on his deathbed. He died on May 24, 1543.

He did get into trouble. The church exiled him and excommunicated him. He killed himself afterwards.

You don't tell us which choices you were given, so we can't help you.

I think that Copernicus preferred to work alone because what he thought went against common religious beliefs.

The church believed that the earth was at the center of the universe.

well, one controversy was that the church during that time was not going to w=sway from Ptolemy's theory of geocentricity. They believed that the bible said that man was the center of the universe, but really, Copernicus' theory of heliocentricity was correct.Like a girls vagina

Nicolaus Copernicus

because you are stupid

Analice Nicolau was born on September 6, 1977, in Blumenau, Santa Catarina, Brazil.

Copernicus changed the accepted heirarchy in the universe by producing a new model of the planets' movements among the fixed stars, as they were called.

The accepted model by Ptolemy, who lived in the Roman Empire, had the Earth at the centre of everything, with the Moon, Sun and everything else orbiting round it. The old model used circles and epicycles to explain the planets' orbits round the Earth (an epicycle is a small circle whose centre moves round a larger circle).

Copernicus devised an alternative model with the Sun at the centre instead, with the planets including Earth in orbit around it. He found that the new model required smaller epicycles, much small for Mercury, Venus and Mars, and this made him think it was preferable because the orbits were much closer to a simple circular shape instead of the complicated paths of the Ptolemaic system.

Copernicus did not publish the new model until the year he died, 1543, because he knew it was contrary to current religious teaching and he had no way of finding which model was more correct because both models represented the planets' movements reasonably accurately. But his work encouraged other scientists who came after him to study the problem, and the model that finally gained acceptance was Kepler's model, published in 1609, which did away with the old circles and epicycles and used elliptical orbits instead.

Kepler retained the idea of putting the Sun at the centre and this model was later accepted after it was explained by the laws of motion and the law of gravity.

The discovery did not support Copernicus's theory directly but it raised doubts about the ancient theory of Ptolemy that said that all objects in the sky are in orbit round the Earth.

Galileo was an aggressive supporter of Copernicus's theory but eventually it was Kepler's theory that became accepted and is still used today. Both Copernicus and Kepler placed the Sun at the centre but Kepler's elliptical orbits are supported by the later theory of dynamics.

The modern theory is the one devised by Johannes Kepler. It uses the heliocentric idea, as Copernicus's model did, but Kepler rejected the circles and epicycles used by Copernicus and Ptolemy before him, and used elliptical orbits for the planets instead.

Kepler's model was published in 1609, and it was realised quite quickly that it represented the movements of the planets more accurately than the old models. But the old models were not bad and their inaccuracies were demonstrated only after Tycho Brahe built new, accurate measuring systems in the late 1500s. Kepler used Tycho's observations.

With 3 systems in play that were all reasonably accurate there was no way of deciding the best one, although Kepler's model was slightly better.

But in the late 1600s Isaac Newton had built on previous work to produce the law of gravity and the laws of motion. He was able to show that a planet in the Sun's gravity field must move in an elliptical orbit. This was the clincher that made people accept Kepler's model.

Copernicus was employed by the Church and was reluctant to publish work that contradicted the scriptures. Publication of his book was delayed until the year he died, 1543.