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They are different because Ptolemy believed that the Earth was the center of the universe, while Copernicus believed that the Earth was in orbit around the sun, just like the other planets.

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When did nicolaus Copernicus discover Jupiter was a planet?

Copernicus dis not discover that Jupiter was a planet. It was always known to be a planet, though for the longest time we did not know what a planet was.


Who was the person that had a theory that earth was a moving planet?

Copernicus.


What was Nicoluas Copernicus discovory?

He discovered that the Earth is a moving planet


Who realized that planet go around sun?

Nicolaus Copernicus


Is Copernicus a planet?

No. Copernicus was a fifteenth to sixteenth century astronomer who is widely credited with suggesting that the sun, not the Earth, was the center of the solar system.


Which scientist said that the planet revolves around the sun?

Nicolas Copernicus


How did Copernicus realize that Venus is an inferior planet?

it was know in ancient times that Venus passes between the Earth and the Sun, and Copernicus had a model which had the Sun at the centre, so in his model Venus was closer to the centre, thus an inferior planet by definition.


When did Copernicus realize that Venus is an inferior planet?

it was know in ancient times that Venus passes between the Earth and the Sun, and Copernicus had a model which had the Sun at the centre, so in his model Venus was closer to the centre, thus an inferior planet by definition. That was in about 1560.


What made Copernicus realize that Venus is an inferior planet?

it was know in ancient times that Venus passes between the Earth and the Sun, and Copernicus had a model which had the Sun at the centre, so in his model Venus was closer to the centre, thus an inferior planet by definition.


Who discovered the planet going around the sun?

The planet going around the sun was discovered by several different astronomers throughout history, but the most famous and credited discovery is that of Uranus by Sir William Herschel in 1781.


Which astronomer thought the earth was a planet?

Copernicus was the first to suggest it as part of a serious theory, in 1543.


When was Earth the planet discovered?

The earth as planet was discovered by some of the ancient astronomers. Nicolaus Copernicus and Ptolemy are credited with provision of the initial information of the earth as a planet in relation to the solar system.