Definition of shepherd satellite in English:

shepherd satellite

Line breaks: shep|herd sat¦el|lite
(also shepherd moon)

noun

Astronomy
  • A small moon orbiting close to a planetary ring, especially of Saturn, and whose gravitational field confines the ring within a narrow band.
    More example sentences
    • For one thing, the particles in some of the rings are corralled into narrow bands by the so-called shepherd moons: teeny satellites that orbit near the rings.
    • Atlas and other moons exist outside the main ring system, as do the two F ring shepherd moons, Prometheus and Pandora.

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Word of the day coloratura
Pronunciation: ˌkɒlərəˈtjʊərə
noun
elaborate ornamentation of a vocal melody