Details : Item 214
| Mom | Son | Bird | Cat | Daughter | Dad | Dog | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Terrestrial planets |  |  |  |  |  |  |  | ||||
| Gas giants |  |  |  |  |  |  |  | ||||
| Gas giants 2 |  |  |  |  |  |  |  | ||||
| Ice giants |  |  |  |  |  |  |  | ||||
| Dwarf planets |  |  |  |  |  |  |  | ||||
| Others |  |  |  |  |  |  |  | ||||
 | |||||||||||
| Famille : Gas giants 2/Daughter |
|---|
|
| Dione |
| Moon of Saturn Originally named Sidera Lodoicea by its discoverer Giovanni Cassini to honor king Louis XIV. Dione has two co-orbital, or trojan, moons. |
| Properties | |
|---|---|
| Albedo | 0.998 |
| Radius (km) | 561.4 |
| Mass (kg) | 1.095x10+21 |
| Density (g/cm3) | 1.478 |
| Gravity (m/s2) | 0.232 |
| Orbital period (days) | 2.737 |
| Orbital speed (km/s) | 10.027 |
| Temperature (K) | 87 |
| Discovery date | 1684 (G. Cassini) |