Hill sphere

Noun

Meaning

Hill sphere (plural Hill spheres)

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

Source: en.wiktionary.org

Synonyms

roche sphere

Related terms

Hill radius

Examples

However, the resonance width (the range of semi-axes compatible with the resonance) is very narrow and only a few times larger than Pluto’s Hill sphere (gravitational influence). Source: Internet

When the comet passed Jupiter in the late 1960s or early 1970s, it happened to be near its aphelion, and found itself slightly within Jupiter's Hill sphere. Source: Internet

Close letter words and terms

Hill Ridware hill ripper Hill River poison hill start hill station hill to bedfordshire