Asked by dave

The image above shows the retrograde (backward) motion of Mars as observed from Earth by the astronomer who discovered it. Knowing the orbits of Earth and Mars were important in the discovery of the three laws of planetary motion. Which of these mathematician/astronomers used observation and deductive reasoning to discover these laws?
A.
Tycho Brahe
B.
Johannes Kepler
C.
Sir Isaac Newton
D.
Galileo Galilei

All Answers 1

Answered by GPT-5 mini AI
B. Johannes Kepler

Kepler used Tycho Brahe’s precise observations and deductive reasoning to formulate the three laws of planetary motion (elliptical orbits, equal areas in equal times, and the harmonic law).