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Table of Contents Enchanted Learning
All About Astronomy
Site Index
Our Solar System Stars Glossary Printables, Worksheets, and Activities
The Sun The Planets The Moon Asteroids Kuiper Belt Comets Meteors Astronomers

Your weight on the Planets The Planets Your age on the Planets
Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune pluto
URANUS
Introduction to Uranus Seasons and Rotational Tilt Atmosphere and Planetary Composition Uranus' Rings Uranus' Moons Activities, Web Links

URANUS' MOONS

MOONS

Oberon, the second-largest moon of Uranus. Photo taken by NASA's Voyager mission in 1986.
Uranus has 27 moons (as of 2012), Cordelia, Ophelia, Bianca, Cressida, Desdemona, Juliet, Portia, Rosalind, Belinda, Puck, Miranda, Ariel, Umbriel, Titania, Oberon, Caliban, Sycorax, Prospero, Setebos, Stephano, Trinculo, and six unnamed moons.

Two large moons were discovered by Wm. Herschel in 1781, 2 were discovered by Wm. Lassell in 1851, and one by G. Kuiper in 1948.

Some of the moons of Uranus in order by distance from Uranus:

Moon Distance from Uranus, km Diameter
km
Interesting Feature Discoverer, Year of Discovery
Cordelia 50,000 26 shepherds Uranus' outermost ring Voyager 2, 1986
Ophelia 54,000 32 shepherds Uranus' outermost ring Voyager 2, 1986
Bianca 59,000 44 . Voyager 2, 1986
Cressida 62,000 66 . Voyager 2, 1986
Desdemona 63,000 58 . Voyager 2, 1986
Juliet 64,000 84 . Voyager 2, 1986
Portia 66,000 110 . Voyager 2, 1986
Rosalind 70,000 54 . Voyager 2, 1986
Belinda 75,000 68 . Voyager 2, 1986
1986U10 75,000 40 . Erich Karkoschka, 1999
Puck
86,000 154 Irregular shape and a mottled surface Voyager 2, 1985
Miranda
130,000 472 Its surface is marked by huge grooves, and appears to have shattered many times. It has a bright, V-shaped groove on its surface, the Inverness Corona, which has been nicknamed the chevron G. Kuiper, 1948
Ariel
191,000 1158 The brightest moon of Uranus. Youngest surface of Uranus' moons, the least cratered. Has long valleys and canyons. Wm. Lassell, 1851
Umbriel
266,000 1170 Darkest moon of Uranus. Old surface, heavily cratered. It has a bright ring at its top (probably a crater floor) called a fluorescent cheerio. Wm. Lassell, 1851
Titania
436,000 1578 The biggest moon of Uranus. It is about half the size of our moon. Titania is covered by many small craters, a few huge impact basins ice cliffs, and fault lines. Wm. Herschel, 1787
Oberon
583,000 1523 Oberon is covered by many craters (indicating an old surface) and ice. Wm. Herschel, 1787
Caliban 7,200,000 80 . Gladman, 1997
Sycorax 12,200,000 60 . Gladman, 1997




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