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Why do scientists not believe in ptolemaic model?
because the work of Tycho and Kepler showed the heliocentric model was more accurate.
Who created the modern model of the solar system by discovering that the planets move in ellipse?
Johannes Kepler.
Who was the first to propose elliptical orbits of the planets?
Johannes Kepler
What are Six early ideas about planetary motion?
Eccentricity, geocentric model, heliocentric model, Kepler's second and third laws, elliptical orbits, and Newtons gravitation
The fact that each planets orbit is an ellipse was discovered by?
Johannes Kepler determined that all planets have elliptical orbits.
Do we use Kepler's Model in modern astronomy?
No
Who was johanes Kepler and how he revised the heliocentric model?
Johanes Kepler was a German astronomer. He revised the heliocentric model by demonstrating that the orbits are ellipses. glad if that helped you out :) xx
Which astronomer invented the elliptical model?
Johannes Kepler. See http://en.wikipedia.org/wiki/Kepler for more details.
What conclusion did Kepler eventually come to that revolutionized the heliocentric model of the solar system?
kepler determined the planetary orbits were elliptical
Kepler's first law worked where Copernicus' original heliocentric model failed because Kepler described the orbits as?
Copernicus's theory did not fail but it was not as accurate as the Kepler model because it did not include elliptical orbits for the planets, as Kepler's model did. However the data for calculating the elliptical orbits did not become available until well after Copernicus's death so he had no chance of knowing about this change. Copernicus's model which used circles and epicycles was accurate to the standard of the observations that were available to him.
Who replaced circles with In a heliocentric model of the universe?
Johannes Kepler
Who replaced circles with ellipse in a heliocentric model of the universe?
Johannes Kepler
How did Kepler's work improve on or support Copernicus' heliocentric?
Kepler completely replaced Copernicus's theory of the orbits of the planets, which was based on circles an epicycles, with a new theory using elliptical orbits. However Kepler retained Copernicus's idea of placing the Sun at the centre.
Who replace the circles with ellipses in a heliocentric model of the solar system?
Johannes Kepler
How did Kepler's work improve on or support Copernicus's heliocentric theory?
Kepler completely replaced Copernicus's theory of the orbits of the planets, which was based on circles an epicycles, with a new theory using elliptical orbits. However Kepler retained Copernicus's idea of placing the Sun at the centre.
Who replaced circles with ellipses in a helicentric model of the universe?
Johannes Kepler replaced circles with ellipses in the heliocentric model of the universe.
Why do scientists not believe in ptolemaic model?
because the work of Tycho and Kepler showed the heliocentric model was more accurate.
