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| Mass (kg) | 5.69 x 1026 |
| Diameter (km) | 120660 |
| Mean density (kg/m3) | 690 |
| Escape velocity (m/s) | 35600 |
| Average distance from Sun | 9.537 AU (1,426,725,400 km) |
| Rotation period (length of day in Earth days) | 0.44 (10.2 Earth hours) |
| Revolution period (length of year in Earth years) | 29.46 |
| Obliquity (tilt of axis degrees) | 26.7 |
| Orbit inclination (degrees) | 2.49 |
| Orbit eccentricity (deviation from circular) | 0.056 |
| Mean temperature (K) | 88 K (1 bar level) |
| Visual geometric albedo (reflectivity) | 0.46 |
| Atmospheric components | 97% hydrogen, 3% helium, .05% methane |
| Rings | Rings are
270,000 km in diameter,
but only a few hundred meters thick. Particles are centimeters to decameters in size and are ice (some may be covered with ice); there are traces of silicate and carbon minerals. There are four main ring groups and three more faint, narrow ring groups separated by gaps called divisions. |
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