| Average distance from the Sun | 30.0611 AU (44.52 x 108 km) |
| Eccentricity of orbit | 0.0100 |
| Maximum distance from the Sun | 30.4 AU (45.4 x 108 km) |
| Minimum distance from the Sun | 29.8 AU (44.52 x 108 km) |
| Inclination of orbit to ecliptic | 1º 46' 27'' |
| Average orbital velocity | 5.43 km/sec |
| Orbital period | 164.793 y (60,189 days) |
| Period of rotation | 16h 3m |
| Inclination of equator to orbit | 28º 48' |
| Equatorial diameter | 49,500 km |
| Mass | 1.030 x 1026 kg |
| Average density | 1660 kg/m3 |
| Gravity | 1.19 earth gravities |
| Escape velocity | 25 km/sec |
| Temperature at cloud tops | 55 K (-360º F) |
| Atmospheric Pressure | 1-3 bars |
| Atmospheric Composition | 85% Hydrogen 13% Helium 2% Methane |
| Albedo | 0.35 |
| Oblateness | 0.027 |