Final answer:
Johannes Kepler utilized the extensive observational data of Tycho Brahe and the heliocentric model proposed by Copernicus to develop his laws of planetary motion.
Step-by-step explanation:
To help his research, Johannes Kepler used the prior data of Tycho Brahe and Copernicus. Tycho Brahe was a Da=nish nobleman and a pre-telescopic observer who made extensive observations of planetary movements from his observatory on the island of Hven. After Brahe's death, Kepler continued this work and used it to form the basis of his own theories on planetary motion. Kepler also studied the heliocentric model of the universe, which was proposed by Copernicus. Combining these two sources of information, Kepler was eventually able to formulate his famous laws of planetary motion, which explained the orbital paths of planets around the sun and contributed significantly to the field of astronomy.