Author Question: What data did Tycho Brahe collect that was useful to Johannes Kepler in his quest to describe ... (Read 81 times)

lilldybug07 · **on:** Jul 14, 2018

What data did Tycho Brahe collect that was useful to Johannes Kepler in his quest to describe planetary motion?

What will be an ideal response?

Question 2

What major change did Copernicus make in the Ptolemaic system? Why was this change philosophically different?

What will be an ideal response?

Sarahjh · **Reply #1 on:** Jul 14, 2018

Answer to Question 1

Tycho Brahe tried to collect measurements of stellar parallax to disprove Copernicus's heliocentric theory. Kepler later used these measurements to prove the Copernican model correct.

Answer to Question 2

Copernicus changed the view of the solar system from a geocentric one to a heliocentric one, where the Sun became the center around which all planetary bodies orbited. This change was philosophically different in that Copernicus held the Sun as a great monumental illuminating body that should, of course, be at the center.