| Mass (kg)
| 1.02 x 1026
|
| Diameter (km)
| 49528
|
| Mean density (kg/m3)
| 1640
|
| Escape velocity (m/s)
| 23300
|
| Average distance from Sun
| 30.07 AU (4,498,252,900 km)
|
| Rotation period (length of day in Earth days)
| 0.67 (19.1 hours)
|
| Revolution period (length of year in Earth days)
| 60,190 (164.8 Earth years)
|
| Obliquity (tilt of axis degrees)
| 29.6
|
| Orbit inclination (degrees)
| 1.77
|
| Orbit eccentricity (deviation from circular)
| 0.009
|
| Mean temperature (K)
| 48
|
| Visual geometric albedo (reflectivity)
| 0.51
|
| Atmospheric components
| 74% hydrogen,
25% helium,
1% methane (at depth)
|
| Rings
| Rings are narrow, and contain
concentrations of particles
called ring arcs.
|
