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How are ptolemy and copernicus' ideas about the universe different from each other?
Ptolemy and Copernicus' ideas about the universe are different from each other in the sense that Ptolemy thought that every celestial object as well as the sun and the moon orbited the Earth whereas Copernicus had the thought that all planets orbited the Sun, while the Moon orbited the Earth.
Who was the polish astronomer who suggested the sun was in the center if the universe?
Nicolaus Copernicus, in 1543 , proposed his version of the heliocentric (Sun-centered) organization of the universe.(from De revolutionibus orbium coelestium)Finally we shall place the Sun himself at the center of the Universe.All this is suggested by the systematic procession of events andthe harmony of the whole Universe, if only we face the facts,as they say, 'with both eyes open'.
What kind of object is believed to be in the center of the universe?
The center of the universe would be defined in astronomical terms as the place where the Big Bang took place some thirteen and a half billion years ago. At this point in time it is probably empty. No object would still be there. Unless someone has erected a plaque, perhaps, to mark that historically important location.
Is there proof that the earth is the center of the universe?
No, there is no scientific proof that the Earth is the center of the universe. The concept of Earth being the center of the universe, known as geocentrism, was disproven by the heliocentric model proposed by astronomers like Copernicus and Galileo. Evidence from observations and experiments supports the heliocentric model, where the Sun is at the center of our solar system.
By observing sunspots Galileo cuncluded that the sun was?
Galileo concluded that the sun was rotating on its axis by observing sunspots and tracking their movement across its surface. This discovery supported the heliocentric model proposed by Copernicus, which suggested that the Earth and other planets revolve around the sun.
