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.
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.
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.
All the models explain retrograde motion because it is such an obvious phenomenon. In Copernicus's model an outer planet goes into retrograde motion when the inner planet overtakes it so that it appears from the inner planet to be going backwards along the ecliptic.
In 1543, Copernicus published a book about a new idea he had. Most pople in his day thought that the Earth was the centre of the Universe. But, Copernicus disagreed. according to him, the Universe is not centred around the Earth, but the Earthis actually a planet circling the Sun.
It means the planet rotates slower. To be precise, the angular velocity is less.
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.
Copernicus.
He discovered that the Earth is a moving planet
Nicolaus Copernicus
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.
Nicolas Copernicus
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.
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.
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.
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.
Copernicus was the first to suggest it as part of a serious theory, in 1543.
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.