Kepler's equation

proper noun

the mathematical relationship between the mean anomaly (M) and the eccentric anomaly (E) of a planet in an elliptical orbit with eccentricity (ϵ). M=E-ϵ· sin (E).

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Meanings

proper noun
  1. celestial mechanicsastronomythe mathematical relationship between the mean anomaly (M) and the eccentric anomaly (E) of a planet in an elliptical orbit with eccentricity (ϵ). M=E-ϵ· sin (E).

Origin

Named after Johannes Kepler (1571–1630), German mathematician and astronomer.

Full word history & related roots →

Translations

Chinese Mandarin 開普勒方程 /开普勒方程
  • 開普勒方程 /开普勒方程 (Kāipǔlè fāngchéng)mathematics
French équation de Kepler
  • équation de Keplermathematics
German Kepler-Gleichung
  • Kepler-Gleichungmathematics
Italian equazione di Keplero
  • equazione di Kepleromathematics
Japanese ケプラー方程式
  • ケプラー方程式 (Kepurā hōteishiki)mathematics
Russian уравне́ние Ке́плера
  • уравне́ние Ке́плера (uravnénije Képlera)mathematics
Cite this entry
APA

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

MLA

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

Chicago

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

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