shep·herd sat·el·lite
/ˈSHepərd ˈsadlˌīt/
noun
a small moon orbiting close to a planetary ring, especially of Saturn, and whose gravitational field confines the ring within a narrow band.
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A shepherd moon is a small natural satellite that clears a gap in planetary ring material or keeps particles within a ring contained.
A satellite of a ringed planet whose gravitational field has a significant effect on the configuration of planetary rings near it.
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shepherd moon (plural shepherd moons). A small moon that orbits near the outer edges of a planetary ring or within gaps in the ring.
What are shepherd moons? - Blogstronomy
blogstronomy.blogspot.com › 2009/10 › what-are-shepherd-moons
Oct 30, 2009 · Shepherd moons are just ordinary moons: there is nothing special about them other than being in the right place to cause this effect.
Aug 23, 2017 · If a planet has a ring there's a solid chance there's a shepherd moon alongside it. Find out how ...
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Posted: Aug 23, 2017
Duration: 3:55
Posted: Aug 23, 2017
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Shepherd Moons: Collisions between the tightly packed ring particles would naturally lead to an increase in the radial width of the rings.
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Oct 16, 2023 · A shepherd moon (also herder moon, watcher moon) is a small natural satellite that clears a gap in planetary-ring material or keeps particles within a ring ...
n. A moon that orbits near the edge of a planetary ring, constraining the ring's extent through gravitational interactions with the ring particles.
“Shepherd Moons” came from the small satellite moons that had then been discovered around Saturn, shepherding the rings, keeping the rings in place.
Shepherd-moon definition: 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 ...