Cordelia and Ophelia are shepherd moons that keep Uranus' thin, outermost "epsilon" ring well defined.
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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.
Of the moons known to orbit Uranus, Cordelia is closest to the planet. It and Ophelia are shepherd moons whose gravity keeps the particles that constitute ...
William Herschel discovered the first two moons, Titania and Oberon, in 1787. The other three ellipsoidal moons were discovered in 1851 by William Lassell ( ...
May 2, 2023 · Four of the Uranian moons, Titania, Oberon, Umbriel, and Ariel, can be seen with medium to large telescopes and some care. The latter two moons ...
The other giant planets Saturn, Uranus, and Neptune also have regular inner and irregular outer moons. Neptune also has Trojan asteroids. Click on the links ...
Shepherd moons. Uranus' ring shepherd moons are Cordelia and Opelia (ε Ring), and Portia and Rosalind (ν Ring).
In the figure above, the inner two satellites of Uranus, Cordelia and Ophelia, orbit on either side of the Epsilon ring at exactly the right radii required for ...
Jul 19, 2023 · The two innermost moons, Cordelia and Ophelia, are shepherds of Uranus's ε ring, whereas the small moon Mab is a source of Uranus's ...
Uranus has 27 known moons. Titania, the largest, is about half the size of our own moon. The moons are all made of ice and rock.
