4 Questions
Who concluded that the Earth revolves about its own axis and it moves in a circular orbit around the Sun?
Aryabhatta
Who established three laws of planetary motion based on meticulous data recorded by Tycho Brahe?
Johannes Kepler
Who provided the reason why planets obey the laws of planetary motion?
Isaac Newton
Who studied the motion of the moon, Earth, and other planets in the 5th century A.D.?
Aryabhatta
Study Notes
Key Contributors to Understanding Planetary Motion
- The Earth's rotation on its own axis and its circular orbit around the Sun were concluded by Copernicus.
Laws of Planetary Motion
- Three laws of planetary motion were established by Johannes Kepler based on data recorded by Tycho Brahe.
Gravity and Planetary Motion
- The reason why planets obey the laws of planetary motion was provided by Sir Isaac Newton.
Ancient Astronomical Studies
- The motion of the moon, Earth, and other planets was studied by Aristarchus in the 5th century A.D.
Test your knowledge of important figures and discoveries in the history of astronomy, including Aryabhatta, Tycho Brahe, and Johannes Kepler.
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