Rings of Uranus one of which, Mab, shares its orbit with the outermost newly discovered μ ring. As currently understood, the ring system of Uranus comprises thirteen distinct rings. In order of increasing distance from the planet they are: 1986U2R/ζ, 6, 5, 4, α, β, η, γ, δ, λ, ε, ν, μ rings. They can be divided into three groups: nine narrow main rings (6, 5, 4, α, β, η, γ, δ, ε), two dusty rings (1986U2R/ζ, λ) and two outer rings (ν, μ). The rings of Uranus consist mainly of macroscopic particles and little dust, although dust is known to be present
The Rings of Akhaten The Rings of Akhaten "The Rings of Akhaten" is the seventh episode of the seventh series of the British science fiction television series "Doctor Who", first broadcast on BBC One on 6 April 2013. It was written by Neil Cross and directed by Farren Blackburn. In the episode, alien time traveller the Doctor (Matt Smith) takes his new companion Clara Oswald (Jenna-Louise Coleman) to the Rings of Akhaten, where several planetoids in a ring system are orbiting a larger planet. They attend a religious festival where the young Queen of Years, Merry Gejelh (Emilia Jones), is about to be sacrificed