Kepler’s laws of planetary motion: Facts & Related Content
Did You Know?
- Kepler was the assistant of Tycho Brahe, a prevalent astronomer who worked before the invention of the telescope.
- Kepler confirmed that Galileo's heliocentric view of the universe (as opposed to Brahe's more popular, mostly geocentric view of the universe) was correct.
- Kepler reached his conclusions while using Brahe's careful astronomical observations to define the orbit of Mars.
Photos and Videos
Related Topics and References
Topics
Kepler’s first law of planetary motionKepler’s third law of planetary motionKepler’s second law of planetary motionUnderstanding Kepler’s Laws of Planetary Motioncelestial mechanicsaphelionNewton’s laws of motionMach’s principleNewton’s law of gravitationphaseretrograde motionanomalyconjunctionconstant of aberrationsynodic period
Dig Deeper: More Articles That Discuss This Topic
Key People

Johannes Kepler
German astronomer