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21 How did Kepler deviate from the beliefs of Aristotle and Copernicus in his first law?
Johannes Kepler came up with his first law in 1618 which says that every planet moves in an ellipse with the Sun at one focus (an ellipse has two of these). It differs from earlier theories, which were not bad, just complicated, that the planets move in a system of circles. There would be a circle for the main orbit, then another small circle to allow for the fact that each planet is sometimes closer to the Sun or further away than normal, then another small circle to allow for the inclination of the orbit to the ecliptic, and so on. Circles were added to make the planets' observed positions agree with the predictions. Each planet moves round each of its small circles once in the time it takes to go right round its main circle. Copernicus's system with the Sun at the centre had a total of 48 circles for the planets out to Saturn.
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.
The fact that each planet's orbit is an ellipse was discovered by what man?
kepler
By observing sunspots Galileo cuncluded that the sun was?
Copernicus is famous for advancing the view that the Sun is the center of the solar system, and that the Earth and other planets orbit the Sun. This heliocentric (sun-centered) system is contrasted with the geocentric (earth-centered) system in which the Earth is the center of the solar system, and the Sun and planets move around the Earth.
Who is discover that the planet moved in an elliptical orbit?
It was a German astronomer by the name of Johannes Kepler who did a whole lot of geometrical calculations from new and unusually accurate observations made by Tycho Brahe. Kepler showed that the planets each move in an elliptical orbit and he gave three laws describing exactly how they move, and it was found to be much more accurate than the previous models of Ptolemy and Copernicus. He did not know why they behaved as they did and we had to wait until Isaac Newton explained it using his new theory of gravity.
How does Kepler's first law of planetary motion refine Copernicus' model?
Copernicus's model has the planets moving in circles and epicycles round the Sun. Later Kepler's first law says the planets move in ellipses, with the Sun at one focus of each ellipse, the other focus being empty. It took so long to discover that the orbits are ellipses simply because the old model was almost correct and it needed Tycho Brahe's advanced measurements to notice the difference.
21 How did Kepler deviate from the beliefs of Aristotle and Copernicus in his first law?
Johannes Kepler came up with his first law in 1618 which says that every planet moves in an ellipse with the Sun at one focus (an ellipse has two of these). It differs from earlier theories, which were not bad, just complicated, that the planets move in a system of circles. There would be a circle for the main orbit, then another small circle to allow for the fact that each planet is sometimes closer to the Sun or further away than normal, then another small circle to allow for the inclination of the orbit to the ecliptic, and so on. Circles were added to make the planets' observed positions agree with the predictions. Each planet moves round each of its small circles once in the time it takes to go right round its main circle. Copernicus's system with the Sun at the centre had a total of 48 circles for the planets out to Saturn.
The fact that each planets orbit is an ellipse was discovered by?
Johannes Kepler determined that all planets have elliptical orbits.
Why is Copernicus a courageous scientist?
Because he discovered the planets in the solar system and how far apart they are from each other
Magic and superstition related to each other?
is magic and superstition related to each other?
How can you show how numbers are related to each other?
how can I show how numbers are related to each other
Kepler discovered that the orbit of each other planet is?
He discovered that avery planet has a ellipcial orbit, which means oval.
Is mindless behavior related to each other?
no there are not related but they treat each other like brothers
Are hell and hello related to each other?
No, "hell" and "hello" have different origins and meanings. "Hell" refers to a place of punishment or suffering in some religions, while "hello" is a word used as a greeting or an expression of acknowledgment.
Kepler discovered that the orbit of each planet is a?
Ellipse.
How are major parts of the earth system related to each other?
How are the major parts of the earth system related to each other
What scientist found the orbit of each planet to be ellipse?
Kepler
