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Crepe Ring comparison table
Subject is a kind of has diameter has synonym has discovery date has definition has width has discoverer
ringcelestial body   A system of four concentric rings, only about 2-4 km thick. The outermost ring is ring A, then comes Cassini's division, then ring B (also called the bright ring), then Lyot's division, then ring C (the crepe ring), then ring D (discovered in 1969). The rings are a swarm of solid particles, probably jagged rocks about 1 meter to 1 km across (1973), not ice as previously had been assumed, inside the Roche limit. Bobrov (1969) estimates the total mass of the rings to be about 0.01 the lunar mass.  
Crepe Ringring149300 kmC ring1850The second innermost ring of Saturn, it has fewer particles and is less dense than the outer rings; therefore, it is harder to observe.18000 to 20000 kmBond

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