Name | (km) |
From Planet (×103 km) |
Period (days) |
Period (days) |
Inclination |
Eccentricity |
(%) |
---|---|---|---|---|---|---|---|
Regular Direct Satellites | |||||||
Pan | 20 | 133.583 | 0.5750 | 0° | 0 | 50 | |
Daphnis | 7 | 136.500 | 0.594 | 0° | 0 | ||
Atlas | 37 × 34.4 × 27 | 137.670 | 0.6019 | 0.3° | 0 | 80 | |
Prometheus | 148 × 100 × 68 | 139.353 | 0.6130 | 0° | 0.0024 | 50 | |
Pandora | 110 × 88 × 62 | 141.700 | 0.6285 | 0° | 0.0042 | 70 | |
Epimetheus | 138 × 110 × 110 | 151.422 | 0.6942 | 0.6942 | 0.335° | 0.021 | 80 |
Janus | 194 × 190 × 154 | 151.472 | 0.6945 | 0.6945 | 0.165° | 0.007 | 90 |
Mimas | 209 × 392 × 382 | 185.52 | 0.9424 | 0.9424 | 1.566° | 0.0202 | 50 |
Methone | 3 | 194 | 1.01 | 0° | 0 | ||
60th | 2 | ? | ? | ?° | ? | ||
Pallene | 4 | 211 | 1.14 | 0° | 0 | ||
Enceladus | 512 × 494 × 490 | 238.02 | 1.3702 | 1.3702 | 0.01° | 0.0045 | 100 |
Telesto | 30 × 25 × 15 | 294.66 | 1.8878 | 1.158° | 0.001 | 100 | |
Tethys | 1072 × 1056 × 1052 | 294.66 | 1.8878 | 1.8878 | 1.86° | 0.000 | 90 |
Calypso | 30 × 16 × 16 | 294.66 | 1.8878 | 1.473° | 0.001 | 100 | |
Dione | 1,118 | 377.40 | 2.7369 | 2.7369 | 0.02° | 0.0022 | 70 |
Helene | 36 × 32 × 30 | 377.40 | 2.7369 | 0.212° | 0.005 | 70 | |
Polydeuces | 4 | 377.40 | 2.7369 | 0° | 0 | ||
Rhea | 1,528 | 527.04 | 4.5175 | 4.5175 | 0.327° | 0.0010 | 70 |
Titan | 5,150 | 1,221.83 | 15.945421 | 15.945421 | 1.634° | 0.0292 | 22 |
Hyperion | 370 × 280 × 226 | 1,481.1 | Chaotic | 21.276609 | 0.468° | 0.018 | 30 |
The Peculiar Iapetus | |||||||
Iapetus | 1,436 | 3,560.8 | 79.330183 | 79.330183 | 14.72° | 0.0283 | 5 - 50 |
Irregular Direct Satellites | |||||||
Kiviuq | 16 | 11,365 | 449.2 | 46.16° | 0.334 | ||
Ijiraq | 12 | 11,440 | 451.5 | 46.74° | 0.322 | ||
Paaliaq | 22 | 15,199 | 686.9 | 45.13° | 0.364 | ||
Albiorix | 32 | 16,404 | 783.5 | 33.98° | 0.478 | ||
Bebhionn | 6 | 16,950 | 822 | 41.0° | 0.336 | ||
Erriapo | 10 | 17,616 | 871.9 | 34.45° | 0.474 | ||
S/2007 S1 | 7 | 17,920 | 895 | 49.83° | 0.107 | ||
Siarnaq | 40 | 18,160 | 893.1 | 45.56° | 0.295 | ||
Tarvos | 15 | 18,247 | 925.6 | 33.51° | 0.531 | ||
Irregular Retrograde Satellites | |||||||
Phoebe | 230 × 220 × 210 | 12,952 | 0.5 | -548.2 | 174.8° | 0.164 | 6 |
Skathi | 8 | 15,647 | -728.9 | 152.7° | 0.270 | ||
S/2007 S2 | 6 | 16,560 | -800 | 176.7° | 0.218 | ||
Skoll | 6 | 17,665 | -878.3 | 161.2° | 0.464 | ||
S/2006 S4 | 6 | 18,105 | -905 | 172.7° | 0.374 | ||
S/2004 S13 | 6 | 18,450 | -906 | 167.4° | 0.273 | ||
S/2004 S17 | 6 | 18,600 | -986 | 166.6° | 0.259 | ||
S/2006 S6 | 6 | 18,600 | -942 | 162.9° | 0.192 | ||
Mundilfari | 7 | 18,709 | -951.4 | 167.5° | 0.208 | ||
Narvi | 7 | 18,719 | -956.2 | 134.6° | 0.352 | ||
Bergelmir | 6 | 18,750 | -1,008 | 156.9° | 0.180 | ||
S/2006 S1 | 6 | 18,981 | -970 | 154.2° | 0.130 | ||
Hyrokkin | 8 | 19,338 | -931.8 | 151.4° | 0.333 | ||
Aegir | 6 | 19,350 | -1,026 | 167.0° | 0.241 | ||
Suttungr | 7 | 19,463 | -1,016.3 | 175.8° | 0.114 | ||
S/2004 S12 | 5 | 19,650 | -1,048 | 164.0° | 0.401 | ||
Bestla | 7 | 19,650 | -1,052 | 147.4° | 0.795 | ||
Farbauti | 5 | 19,800 | -1,077 | 157.6° | 0.235 | ||
S/2004 S07 | 6 | 19,800 | -1,103 | 165.1° | 0.580 | ||
Hati | 6 | 19,950 | -1,081 | 162.7° | 0.292 | ||
S/2007 S3 | 5 | 20,159 | -1,100 | 177.2° | 0.130 | ||
Thrymr | 7 | 20,382 | -1,086.9 | 175.8° | 0.470 | ||
S/2006 S3 | 6 | 21,132 | -1,142 | 150.8° | 0.471 | ||
Kari | 7 | 22,118 | -1,233.6 | 156.3° | 0.478 | ||
Fenrir | 4 | 22,200 | -1,271 | 163.0° | 0.135 | ||
Fornjot | 6 | 22,200 | -1,355 | 168.0° | 0.213 | ||
Surtur | 6 | 22,707 | -1,297.7 | 177.5° | 0.451 | ||
Loge | 6 | 23,065 | -1,312.0 | 167.9° | 0.187 | ||
Ymir | 18 | 23,096 | -1,312.4 | 173.1° | 0.333 |
Most of the other satellites are irregularly shaped bodies; only three are over 1000km in diameter.
The outer satellites are less than 100km in diameter apart from Phoebe. They may be captured asteroids.
As seen from above the north pole of the Earth, most of the planets and satellites revolve in an anticlockwise direction. This is called Direct or Prograde Motion. Some satellites revolve in a clockwise sense. This is called Retrograde Motion and is shown by the presence of a minus sign. Phoebe and the other outer satellites revolve in the retrograde direction.
Iapetus has one very dark side and one bright side; probably the result of a collision or a close encounter with the planet's rings.