Kepler's law

A form of Kepler's laws — The three laws of planetary motion discovered by Kepler in the early 17th century, stating that (i) the orbit of a planet is an ellipse with the Sun at one of the two foci, (ii) a line segment joining a planet and the Sun sweeps out equal areas during equal intervals of time, and (iii) the square of the orbital period of a planet is proportional to the cube of the semi-major axis of its orbit.

Similar
Kepler's law of planetary motion
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Meanings

nounKepler's law (plural Kepler's laws)

plural Kepler's laws

  1. singularsingular of Kepler's laws

Synonyms & antonyms

noun(astronomy) one of three empirical laws of planetary motion stated by Johannes Kepler

Similar
Kepler's law of planetary motion
Broader
lawlaw of nature

Synonym sets from Open English WordNet, CC BY 4.0.

Cite this entry
APA

Kepler's law. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/Kepler's%20law

MLA

“Kepler's law.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Kepler's%20law. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “Kepler's law,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/Kepler's%20law.

Source: Kepler's law on Wiktionary, CC BY-SA 4.0.