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What is the difference between the Ptolemy and Copernicus models of the solar system?
Wiki User
∙ 8y ago
The difference between Ptolemy's and Copernicus's model was that, Ptolemy's model had the Earth in the middle of the Solar System, with all the other planets (including the Sun and the moons) revolving around it. In Copernicus's model, he had the Sun in the center of the Solar System.
Wiki User
∙ 8y ago
The Ptolemaic model proposed that the Earth was the center of the universe with planets and the Sun revolving around it, while the Copernican model suggested that the Sun was at the center and that the planets, including Earth, orbited around it. Copernicus' heliocentric model eventually replaced the geocentric Ptolemaic model as the accepted explanation of the solar system.
Wiki User
∙ 12y agoWiki User
∙ 12y agoPtolemy thought the earth was the center of the solar system (Otherwise known as the Geocentric theory) and Copernicus's idea was that the sun was at the center of the solar system (Heliocentric theroy).
Wiki User
∙ 11y ago1. Ptolemy (and Aristotle) developed a geocentric (or Earth centered) view of the solar system based upon his idealistic view of its perception; i.e. known as Geocentrism (or the Ptolemaic system). Similarly while everything we know about the universe is based on our ability to observe and measure varying degrees of luminosity/radiation within this fourth dimensional confinement, there is no credible model of the universe which endorses a geocentric model for our known universe.===2. Copernicus established and supported the logic for a more sun centered view of the solar systems; i.e. known as Heliocentrism (or the Copernican system).
Wiki User
∙ 11y agoit isnt
Anonymous
The Earth was presented in the middle of his model and in the modern model the sun is in the middle
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What are the similarities beween Copernicus' model of the universe and Ptolemy's model of the universe?
Both Copernicus' and Ptolemy's models aimed to explain the motion of celestial bodies in the sky. However, Copernicus placed the Sun at the center of the universe, while Ptolemy's model had Earth at the center. Both models used the concept of epicycles to explain the retrograde motion of planets.
What were the similarities between Ptolemy's model and Copernicus' model?
Both Copernicus heliocentric and the Ptolemaic models agreed on the need for epicycles. These were miniature orbits that the celestial bodies travelled on as well as their normal orbits.Copernicus still invigaed the bodies orbiting in perfect circles and had to put these in to explain some of the movements of the planets. This may have contributed to his ideas being largely dismissed as it was just as complicated as the already established model. It was not until Kepler proposed elliptical orbits was this problem resolved.
How was Copernicus' model of the universe different from Ptolemy's model?
The main difference was that Ptolemy's model was geocentric (Earth-centred) and Copernicus's was heliocentric (Sun-centred). Ptolemy's model came from ancient times while Copernicus's was much later (1543). Both models represented the planets' orbits by using combinations of circles and epicycles to explain the way the planets move among the stars. Copernicus found that the orbits of the inner planets could be explained more simply. That is to say that the epicycles used for all the orbits were smaller, and for the inner planets a lot smaller. Both models represented the planets' positions with reasonable accuracy given the crude observational methods used in those days. Until gravity and the laws of dynamics were discovered about 150 years after the publication of Copernicus's system, there was no way of deciding which model was the 'right' one.
How are Copernicus theory and Ptolemy theory have in common'?
Both the Copernican and Ptolemaic models were geocentric theories that sought to explain the motion of celestial bodies, particularly the movement of the Sun, Moon, and planets in relation to Earth. However, the key difference between the two theories lies in their proposed structure of the solar system, with Copernicus advocating a heliocentric model (Sun-centered) while Ptolemy supported a geocentric model (Earth-centered).
What did Ptolemy do that was a mistake?
One of Ptolemy's mistakes was his geocentric model of the universe, which proposed that the Earth was the center of the universe, with all other celestial bodies orbiting around it. This model was eventually proven incorrect with the development of heliocentric models proposed by astronomers like Copernicus and Galileo.
What were the similarities between Ptolemy's model and Copernicus' model?
Both Copernicus heliocentric and the Ptolemaic models agreed on the need for epicycles. These were miniature orbits that the celestial bodies travelled on as well as their normal orbits.Copernicus still invigaed the bodies orbiting in perfect circles and had to put these in to explain some of the movements of the planets. This may have contributed to his ideas being largely dismissed as it was just as complicated as the already established model. It was not until Kepler proposed elliptical orbits was this problem resolved.
How was Copernicus' model of the universe different from Ptolemy's model?
The main difference was that Ptolemy's model was geocentric (Earth-centred) and Copernicus's was heliocentric (Sun-centred). Ptolemy's model came from ancient times while Copernicus's was much later (1543). Both models represented the planets' orbits by using combinations of circles and epicycles to explain the way the planets move among the stars. Copernicus found that the orbits of the inner planets could be explained more simply. That is to say that the epicycles used for all the orbits were smaller, and for the inner planets a lot smaller. Both models represented the planets' positions with reasonable accuracy given the crude observational methods used in those days. Until gravity and the laws of dynamics were discovered about 150 years after the publication of Copernicus's system, there was no way of deciding which model was the 'right' one.
What did Ptolemy do that was a mistake?
One of Ptolemy's mistakes was his geocentric model of the universe, which proposed that the Earth was the center of the universe, with all other celestial bodies orbiting around it. This model was eventually proven incorrect with the development of heliocentric models proposed by astronomers like Copernicus and Galileo.
What was the the model solar system that was thought to be correct before Copernicus?
It was Ptolemy's model. Ptolemy's model came from ancient times while Copernicus's was much later (1543).Both models represented the planets' orbits by using combinations of circles and epicycles to explain the way the planets move among the stars.Copernicus found that the orbits of the inner planets could be explained more simply. That is to say that the epicycles used for all the orbits were smaller, and for the inner planets a lot smaller.Both models represented the planets' positions with reasonable accuracy given the crude observational methods used in those days.Until gravity and the laws of dynamics were discovered about 150 years after the publication of Copernicus's system, there was no way of deciding which model was the 'right' one.
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What is the similarity between the Ptolemy and Copernicus models of the solar system?
The similarity is that both theories used a system of circles and epicycles to explain how the planets move around. Copernicus's theory (1543) used a similar number of epicycles, but many of them were smaller so that the paths followed by the planets were geometrically simpler. The difference was that Copernicus placed the Sun at the centre rather than the Earth as the ancient theory had done. Another theory was later produced by Kepler (1609), which used Copernicus's idea of having the Sun at the centre, but Kepler used elliptical orbits for the planets. This new model fitted observational measurements better, but it was not until many years later after the discovery of the law of gravity and the laws of motion (1687) that it was possible to pick out Kepler's theory as the correct one that is still in use today.
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How does Ptolemy's models model of the universe compare Aristotle's model?
Both Models Show That Celestial Objects Have Circular Paths
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What was the first scientist to dispute Ptolemy's model of a genetic or earth centered?
Copernicus devised an alternative model to explain the planets' movements among the stars. It was similar to Ptolemy's model in that it was composed of circles and epicycles, but it differed in placing the Sun at the centre instead of the Earth. So Ptolemy's model was geocentric while Copernicus's was heliocentric. Copernicus had no way of testing the validity of his model except that it was geometrically simpler, especially for the inner planets Mercury, Venus and Mars which needed much smaller epicycles in Copernicus's model. We now know that the large epicyces in the Ptolemaic model were necessary to compensate for the Earth's movement round the Sun. Galieo's discoveries with the telescope raised more serious doubts about Ptolemy's model when he found that Venus showed phases that could not be explained by the Ptolemaic model. The gibbous phase is not explained by Ptolemy's model because it does not allow Venus to go behind the Sun as seen from Earth. Tycho produced a model that was geocentric but also explained the phases of Venus. Finally all three models were rejected in favour of Kepler's model, which has the Sun at the centre and the planets in elliptical orbits. This is the model used today, with very minor modifications due to the General Theory of Relativity.
