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bn:01816749n

Noun Concept

Categories: Solar System, Articles with short description, Planetary rings, Celestial mechanics

shepherd moon planetary ring ring system Shepard satellite circumplanetary dust

A ring system is a disc or ring, orbiting an astronomical object, that is composed of solid material such as dust and moonlets, and is a common component of satellite systems around giant planets like Saturn. Wikipedia

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A shepherd moon, also called a herder moon or watcher moon, is a small natural satellite that clears a gap in planetary-ring material or keeps particles within a ring contained. Wikipedia

A system of cosmic dust or moonlets, forming rings around, and gravitationally bound to a host non-stellar body. Wikipedia Disambiguation

Small natural satellite associated with a planetary ring Wikidata

Ring of dust and debris orbiting a planet or planet-scale object Wikidata

Ring of dust and other small particles orbiting around a planet in a flat disc-shaped region. OmegaWiki

A small moon that orbits near the outer edges of a planetary ring or within gaps in the ring. The edge of the ring remains sharply defined owing to the gravity of shepherd moons. Wiktionary

Moon orbiting near the edge of a ring. Wiktionary (translation)

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