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Uranus's moons are divided into three groups: thirteen inner moons, five major moons, and ten irregular moons. The inner and major moons all have prograde orbits and are cumulatively classified as regular moons. In contrast, the orbits of the irregular moons are distant, highly inclined, and mostly retrograde.
The planet Uranus has 27 known moons. Uranus’s five largest moons—Miranda, Ariel, Umbriel, Oberon, and Titania—range from about 240 to 800 km (150 to 500 miles) in radius. All were discovered telescopically from Earth, four of them before the 20th century. Ten small inner moons were found by Voyager 2 in 1985–86. An 11th tiny inner moon ...
- The Editors of Encyclopaedia Britannica
May 2, 2023 · These moons are divided into three groups: 13 inner moons, 5 major moons, and 9 irregular moons. The irregular moons have retrograde orbits, while the others are prograde (i.e., they orbit...
List of Uranus' moons. This is a list of the 28 moons of Uranus. They are listed by how long they take to orbit (go around once) Uranus. They are all named after characters created by William Shakespeare and Alexander Pope . Notes: * Negative orbital periods indicate a retrograde orbit around Uranus (opposite to the planet's rotation).
Uranus has 28 known moons, including five major moons: Miranda, Ariel, Umbriel, Titania, and Oberon. The moons are sometimes called the "literary moons" because they are named for Shakespearean characters, along with a couple of the moons being named for characters from the works of Alexander Pope.
All of Uranus's inner moons (those observed by Voyager 2) appear to be roughly half water ice and half rock. The composition of the moons outside the orbit of Oberon remains unknown, but they are likely captured asteroids. Unique Aspects. Here's a sampling of some of the unique aspects of the moons:
The moons, from largest to smallest as shown here, are Ariel, Miranda, Titania, Oberon, and Umbriel. (more) Uranus’s five largest moons range from about 240 to 800 km (150 to 500 miles) in radius. All were discovered telescopically from Earth, four of them before the 20th century ( see below Observations from Earth ).
