hill sphere

Questions

What does hill sphere mean?

The region in which a given astronomical body dominates the attraction of satellites.

Where does hill sphere come from?

Defined by the American astronomer George William Hill.

How to pronounce hill sphere

1. Open the pronunciation page — Open the Speakur entry for “hill sphere”.
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 “hill sphere”.
4. Repeat and practice — Say “hill sphere” aloud, matching stress and vowels until it feels natural.