mean motion

noun

An angle of τ (radians) divided by the orbital period (of a celestial body in an elliptic orbit).

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Meanings

nounmean motion (plural mean motions)

plural mean motions

  1. celestial mechanicsastronomyAn angle of τ (radians) divided by the orbital period (of a celestial body in an elliptic orbit).
Cite this entry
APA

mean motion. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/mean%20motion

MLA

“mean motion.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/mean%20motion. Accessed November 4, 2026.

Chicago

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

Source: mean motion on Wiktionary, CC BY-SA 4.0.