Cordelia

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Cordelia [kor-DEEL-ee-uh] is the innermost of Uranus' moons. With a diameter of only 9 miles (15 km), it is one of the smallest moons in the Solar System. Cordelia was discovered by Voyager 2 in 1986. Not much is known about Cordelia except that it appears to be the inner shepherd satellite for the epsilon ring of Uranus. It is also one of two moons that orbit inside the synchronous orbit radius of Uranus.

                Statistics of Cordelia
Discovered by                            -    Voyager 2
                                      Year of Discovery                       -    1986
                                      Approximate Diameter                -    16.1 miles (26 km)
                                      Mean Distance from Uranus          -   30,905 miles (49,750 km)
                                      Rotational Period                          -  Unknown  
                                      Orbital Period                            -    0.335 Days
                                      Orbital Eccentricity                     -    0
                                      Orbital Inclination                       -    0.14 degrees
                                      Apparent Magnitude                    -    24.1   

                                        Ophelia

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Ophelia [oh-FEEL-ee-uh] is the second of Uranus' moons. Ophelia was discovered by Voyager 2 in 1986. Not much is known about this moon except that it appears to be the shepherd satellite of Uranus' epsilon ring. It is the second of two moons that orbit inside the synchronous orbit radius of Uranus.



                    Statistics of Ophelia
                                      Discovered by                            -    Voyager 2
                                      Year of Discovery                       -    1986
                                      Approximate Diameter                -    19.8 miles (32 km)
                                      Mean Distance from Uranus          -   33,396 miles (57,760 km)
                                      Rotational Period                          -  Unknown  
                                      Orbital Period                            -    0.376 Days
                                      Orbital Eccentricity                     -    0.001
                                      Orbital Inclination                       -    0.09 degrees
                                      Apparent Magnitude                    -    23.8   

                                       Bianca

Bianca [bee-ANG-kuh] is the third of Uranus' moons. Bianca was discovered in 1986 by the Voyager 2 spacecraft. Very little is known about Bianca.

                                                            Statistics of Bianca
                                      Discovered by                            -    Voyager 2
                                      Year of Discovery                       -    1986
                                      Approximate Diameter                -    27.3 miles (44 km)
                                      Mean Distance from Uranus          -   36,750 miles (59,160 km)
                                      Rotational Period                          -  Unknown  
                                      Orbital Period                            -    0.435 Days
                                      Orbital Eccentricity                     -    0.001
                                      Orbital Inclination                       -    0.16 degrees
                                      Apparent Magnitude                    -    23.0   

                                          Cressida

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Cressida [KRES-id-uh] is the fourth moon of Uranus. Cressida was discovered by Voyager 2 in 1986. Not much is known about Cressida at this time.

                




                Statistics of Cressida
                                      Discovered by                            -    Voyager 2
                                      Year of Discovery                       -    1986
                                      Approximate Diameter                -    40.9 miles (66 km)
                                      Mean Distance from Uranus          -   38,372 miles (61,770 km)
                                      Rotational Period                          -  Unknown  
                                      Orbital Period                            -    0.464 Days
                                      Orbital Eccentricity                     -    0.0
                                      Orbital Inclination                       -    1.04 degrees
                                      Apparent Magnitude                    -    22.2   

                                    Desdemona

Desdemona [dez-de-MOH-nuh] is the fifth of Uranus' known moons. This moon was discovered by the Voyager 2 spacecraft in 1986. Little else is known about Othello.

                                                        Statistics of Desdemona
                                      Discovered by                            -    Voyager 2
                                      Year of Discovery                       -    1986
                                      Approximate Diameter                -    36 miles (58 km)
                                      Mean Distance from Uranus          -   38,925 miles (62,660 km)
                                      Rotational Period                          -  Unknown  
                                      Orbital Period                            -    0.474 Days
                                      Orbital Eccentricity                     -    0.0
                                      Orbital Inclination                       -    0.16 degrees
                                      Apparent Magnitude                    -    22.5   

                                        Juliet

Juliet [JOO-lee-et] is the sixth moon of Uranus. Juliet was discovered in 1986 by Voyager 2. Not much else is known about Juliet at this time.

                                                            Statistics of Juliet
                                      Discovered by                            -    Voyager 2
                                      Year of Discovery                       -    1986
                                      Approximate Diameter                -    52.2 miles (84 km)
                                      Mean Distance from Uranus          -   39,981 miles (64,360 km)
                                      Rotational Period                          -  Unknown  
                                      Orbital Period                            -    0.493 Days
                                      Orbital Eccentricity                     -    0.001
                                      Orbital Inclination                       -    0.06 degrees
                                      Apparent Magnitude                    -    21.5   

Portia

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Portia [POR-shuh] is the seventh of Uranus' moons. Portia was one of several new moons discovered by Voyager 2 in 1986. Very little is known about Portia.

                                    




                    Statistics of Portia
                                      Discovered by                            -    Voyager 2
                                      Year of Discovery                       -    1986
                                      Approximate Diameter                -    68.3 miles (110 km)
                                      Mean Distance from Uranus          -   41,062 miles (66,100 km)
                                      Rotational Period                          -  Unknown  
                                      Orbital Period                            -    0.513 Days
                                      Orbital Eccentricity                     -    0.001
                                      Orbital Inclination                       -    0.09 degrees
                                      Apparent Magnitude                    -    21.0   

Rosalind

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Rosalind [ROZ-uh-lind] is the eighth moon of Uranus. Rosalind was discovered by the Voyager 2 spacecraft in 1986. Not much is known about Rosalind.






                    Statistics of Rosalind
                                      Discovered by                            -    Voyager 2
                                      Year of Discovery                       -    1986
                                      Approximate Diameter                -    33.5 miles (54 km)
                                      Mean Distance from Uranus          -   43,441 miles (69,930 km)
                                      Rotational Period                          -  Unknown  
                                      Orbital Period                            -    0.559 Days
                                      Orbital Eccentricity                     -    0.0
                                      Orbital Inclination                       -    0.28 degrees
                                      Apparent Magnitude                    -    22.5   


Belinda

Belinda [bel-LIN-duh] is the ninth of Uranus' known moons. Belinda was another of the moons discovered by Voyager 2 in 1986. We know very little about Belinda.

                                                          Statistics of Belinda
                                   Discovered by                            -    Voyager 2
                                   Year of Discovery                       -    1986
                                   Approximate Diameter                -    42.2 miles (68 km)
                                   Mean Distance from Uranus          -   46,752 miles (75,260 km)
                                   Rotational Period                          -  Unknown  
                                   Orbital Period                            -    0.624 Days
                                   Orbital Eccentricity                     -    0.0
                                   Orbital Inclination                       -    0.03 degrees
                                   Apparent Magnitude                    -    22.1   

Puck

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Puck [PUK] is the tenth moon of Uranus. Puck was discovered in 1986 by the Voyager 2 spacecraft. It was the only new moon discovered early enough in the mission that the observation schedule could be changed in order to get pictures. With an albedo of less than 0.1, Puck is extremely dark. Little else is known about this small moon



                                                                Statistics of Puck
                                   Discovered by                            -   Stephen Synnott
                                   Year of Discovery                       -    1985
                                   Approximate Diameter                -    95.6 miles (154 km)
                                   Mean Distance from Uranus          -   53,430 miles (86,010 km)
                                   Rotational Period                          -  Unknown  
                                   Orbital Period                            -    0.762 Days
                                   Orbital Eccentricity                     -    0.0
                                   Orbital Inclination                       -    0.31 degrees
                                   Apparent Magnitude                    -    20.2   



Caliban

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Caliban [KAL-i-ban] is the sixteenth of Uranus' known moons. It is the smaller of the two moons that have just recently been discovered. The official designation of this moon is Uranus XVI (S/1997 U 1). The name Caliban was chosen by the discoverers and will most likely be accepted by the International Astronomical Union (IAU). Caliban was discovered in 1997 by Brett Gladman, Phil Nicholson, Joseph Burns, and JJ Kavelaars using the 200-inch Hale Telescope. It is one of the dimmest moons to have ever been discovered by a ground-based telescope. Very little is known about this moon, due to the recent nature of its discovery. What we do know is that it is about 38 miles (60 km) in diameter and orbits Uranus at a distance of about 4.4 million miles (7.2 million kilometers). Its orbit appears to be retrograde. Astronomers believe that Caliban is probably an asteroid that was captured by the gravity of Uranus. It is probably composed of a mixture of rock and ice. The picture below shows the original image from which Caliban was discovered.

                                                                Statistics of Caliban
                                   Discovered by                            -   Gladman, Nicholson, Burns,Kavelaars
                                   Year of Discovery                       -    1997
                                   Approximate Diameter                -    37.2 miles (60 km)
                                   Mean Distance from Uranus          -   4,470,000 miles (7,200,000 km)
                                   Rotational Period                          -  Unknown  
                                   Orbital Period                            -    579.7 Days
                                   Orbital Eccentricity                     -    0.159
                                   Orbital Inclination                       -    140.9 degrees
                                   Apparent Magnitude                    -    22.4   


Sycorax

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Sycorax [SIK-or-aks] is the seventeenth and outermost of Uranus' known moons. It is the larger of the two moons that have just recently been discovered. The official designation of this moon is Uranus XVII (S/1997 U 2). The name Sycorax was chosen by the discoverers and will most likely be accepted by the International Astronomical Union (IAU).  Sycorax was discovered in 1997 by Brett Gladman, Phil Nicholson, Joseph Burns, and JJ Kavelaars using the 200-inch Hale Telescope. It is one of the dimmest moons to have ever been discovered by a ground-based telescope. Very little is known about this moon, due to the recent nature of its discovery. What we do know is that it is about 75 miles (120 km) in diameter and orbits Uranus at a distance of about 7.6 million miles (12.2 million kilometers). Its orbit appears to be retrograde. Astronomers believe that Sycorax is probably a captured asteroid. It is thought to be composed of a mixture of rock and ice. The picture below shows the original image from which Sycorax was discovered.

                                                                Statistics of Sycorax
                                   Discovered by                            -   Gladman, Nicholson, Burns,Kavelaars
                                   Year of Discovery                       -    1997
                                   Approximate Diameter                -    75 miles (120 km)
                                   Mean Distance from Uranus          -   7,580,000 miles (12,200,000 km)
                                   Rotational Period                          -  Unknown  
                                   Orbital Period                            -    1288.3 Days
                                   Orbital Eccentricity                     -    0.522
                                   Orbital Inclination                       -    159.4 degrees
                                   Apparent Magnitude                    -    20.8