| Name. | Discoverer. | Mean distance from Saturn. Miles. | Sidereal period. d. h. m. | Diameter. Miles. | Apparent diameter of Saturn seen from satellite. ° | Apparent star magnitude. |
|---|
| 1. MIMAS | Sir W. Herschel, Sept, 17, 1789 | 115,000 | 0 22 37 | 1,000 | 33 | 17 | |
| 2. ENCELADUS | ″ ″ Aug. 28, 1789 | 147,000 | 1 8 53 | ? | 26 | 15 | |
| 3. TETHYS | J. D. Cassini, March, 1684 | 183,000 | 1 21 18 | 500 | 21 | 13 | |
| 4. DIONE | ″ ″ March, 1684 | 234,000 | 2 17 41 | 500 | 16 | 12 | |
| 5. RHEA | ″ ″ Dec. 23, 1672 | 327,000 | 4 12 25 | 1,200 | 12 | 10 | |
| 6. TITAN | Huygens, Mar. 25, 1653 | 758,000 | 15 22 41 | 3,300 | 5 | 8 | |
| 7. HYPERION | W. Bond & Lassell, Sept, 19, 1848 | 916,000 | 21 7 7 | ? | 4 | 17 | |
| 8. IAPETUS | J. D. Cassini, Oct. 25, 1671 | 2,221,000 | 79 7 53 | 1,800 | 2 | 9 | |