Johannes Kepler

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Johannes Kepler

Kepler's revolutionary laws of planetary motion

planetary orbits: Kepler, Newton, and gravity

Kepler, Johannes

Kepler's first law

Kepler's second law

Kepler's third law

frontispiece from Tabulae Rudolphinae (1627; “Rudolphine Tables”) by Johannes Kepler

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Johannes Kepler

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Johannes Kepler: Facts & Related Content

Written and fact-checked by The Information Architects of Encyclopaedia Britannica

Facts

Born	December 27, 1571 • Holy Roman Empire
Died	November 15, 1630 (aged 58) • Regensburg • Germany
Notable Works	“Astronomia Nova” • “Concerning the More Certain Fundamentals of Astrology” • “De Stella Nova” • “Epitome of Copernican Astronomy” • “Harmonies of the World” • “Prodromus Dissertationum Mathematicarum Continens Mysterium Cosmographicum”
Subjects Of Study	Kepler’s Nova • Copernican system • Kepler’s laws of planetary motion • atmospheric refraction • planet • Solar System • space motion • vision • volume
Role In	Scientific Revolution

Did You Know?

Kepler described a fictitious voyage to the moon in his book "Somnium".
Kepler's mother was accused of witchcraft.

Photos and Videos

Johannes Kepler

Kepler, Johannes

Kepler's first law

Kepler's second law

Kepler's third law

frontispiece from Tabulae Rudolphinae (1627; “Rudolphine Tables”) by Johannes Kepler

Astronomers Monument

An artist's visualization of Johannes Kepler discussing his discoveries with Holy Roman Emperor Rudolf II.

Kepler's revolutionary laws of planetary motion

planetary orbits: Kepler, Newton, and gravity

How we understood the universe throughout history

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