Johannes Kepler proposed the 3 laws of planetary motion.
Tycho Brahes discovered a new star in Cassiopeia.
it was i don't know this website is no help at all.this is stupid website.b****es
Oluf Bang has written: 'Lebensbeschreibung des Tycho v. Brahes'
This is because he explained the sun's role in the universe!
Sophie Brahe Rosenkrantz has written: 'sophie Brahes regnskabsbog, 1627-40'
because the widespread of the technological theory was WRONG! he died from a bullet wound. He actually survived that, making it interesting, but then simply died of old age
kepler thought that only brahes observation could solve his problem so in 1600 he joined tycho eith his work after one year tycho died and kepler stole his data from which he devised keplers laws
The question is going for the answer "elliptical". But it needs an important comment:Kepler didn't show that the orbits of the planets "are" anything. He had no way to do that.What he showed was the fact that a system of elliptical orbits with the sun at the centerof everything fits the actual observed evidence better than any other proposed model.That didn't prove anything. It only made his model the best, most likely representation ofthe truth, until something better comes along. You might say it was "just a theory".That's how Science works.
Kepler was Brahe's assistant. He continued to analyze Brahe's data after Brahe's died. Kepler determine that the planets revolve around the sun in elliptical, or ovalshaped, orbits. He also developed three laws that describe planetary motion. These laws are still used today. Hope I explained this clearly(:
Tycho brahe, a mentor and a tutor of johannes kepler was one of the earliest to study the universe, he made observations with naked eye and noted them down . This included motions of stars and planets and our very own moon. But unfortunately he was unable to complete his observations, he was then overtaken by johannes kepler , he was the guy who finished it, even it was heliocentric one (sun at the center).
Kepler used Tycho Brahe's data by developing his Laws of planetary motion and by analyzing his observations about planet's orbit.! :D
Tycho Brahe made measurements of the planets' positions over time with greater accuracy than ever before. The results were used by Johannes Kepler to create the three laws of planetary motion in which the elliptical orbit makes its first appearance in the historyof scoentific thought. Later, Isaac Newton's discoveries in gravity and dynamics explained why elliptical orbits are so important and universal.