THE SATELLITES OF URANUS.
| Name. | Mean Distance from Centre of Uranus. | Periodic Time. Days. |
| Ariel | 119,000 miles. | 2.520383 |
| Umbriel | 166,000 ” | 4.144121 |
| Titania | 272,000 ” | 8.705897 |
| Oberon | 363,000 ” | 13.463269 |
| Name. | Mean Distance from Centre of Uranus. | Periodic Time. Days. |
| Ariel | 119,000 miles. | 2.520383 |
| Umbriel | 166,000 ” | 4.144121 |
| Titania | 272,000 ” | 8.705897 |
| Oberon | 363,000 ” | 13.463269 |