SATELLITES OF URANUS.
| Name. | Discoverer. | Mean distance from Uranus. Miles. | Sidereal period. d. h. m. | Maximum elongation. ″ | |
|---|---|---|---|---|---|
| 1. ARIEL | Lassell, September 14, 1847 | 124,000 | 2 12 28 | 12 | |
| 2. UMBRIEL | O. Struve, October 8, 1847 | 173,000 | 4 3 27 | 15 | |
| 3. TITANIA | Sir W. Herschel, January 11, 1787 | 285,000 | 8 16 55 | 33 | |
| 4. OBERON | ″ ″ | 381,000 | 13 11 6 | 44 |