SYNOPTICAL TABLES.
349
| Divisions in inner bright ring, seen by De Vico, | 2 |
| Divisions in inner bright ring, seen by Dawes, | 4 |
| Isolated stationary bright spots on disappearance of rings, at least | 4 |
| No. | Name. | Sidereal Revolution. |
Distance. Saturn's radius = 1. |
Discoverer. | Year of Discovery. | |||
| d. | h. | m. | s. | |||||
| 1 | Mimas | 0 | 22 | 36 | 18 | 3.1408 | Herschel | 1789 |
| 2 | Enceladus | 0 | 8 | 53 | 3 | 4.0319 | Herschel | 1789 |
| 3 | Tethys | 1 | 21 | 18 | 33 | 4.9926 | Cassini | 1684 |
| 4 | Dione | 2 | 17 | 44 | 51 | 6.399 | Cassini | 1684 |
| 5 | Rhea | 4 | 12 | 25 | 11 | 8.932 | Cassini | 1672 |
| 6 | Titan | 15 | 22 | 41 | 25 | 20.706 | Huyghens | 1655 |
| 7 | Hyperion | 21 | 4 | 20 | 0 | 25.029 | Bond & Lassell | 1848 |
| 8 | Japetus | 79 | 7 | 54 | 41 | 64.359 | Cassini | 1671 |
| Hyperion discovered by Bond and Lassell on same night, year | 1848 |
| Greatest inclination to the plane of the ring
(Japetus), |
12° 14′ |
| Apparent diameter of the largest. Titan, (diam. of Saturn = 1), | 1-10th |
| Length of telescope with which Huyghens discovered Titan, in feet, | 124 |
| Length of telescope with which Cassini discovered
Tethys and Dione, in feet, |
145 |
| Volume (Earth's = 1) | 86.5 |
| Mass (Earth's = 1), | 14.251 |
