mean motion

Questions

What does mean motion mean?

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

How to pronounce mean motion

1. Open the pronunciation page — Open the Speakur entry for “mean motion”.
2. Read the phonetic spelling — Read the IPA spelling () so you know which sounds to aim for.
3. Play the audio — Click Play to hear reference audio for “mean motion”.
4. Repeat and practice — Say “mean motion” aloud, matching stress and vowels until it feels natural.