Planetary data for Uranus

mean distance from Sun 2,870,990,000 km (19.2 AU)

eccentricity of orbit 0.0461

inclination of orbit to ecliptic 0.774°

Uranian year (sidereal period of revolution) 84.01 Earth years

visual magnitude at mean opposition 5.5

mean synodic period* 369.66 Earth days

mean orbital velocity 6.81 km/s

equatorial radius** 25,559 km

polar radius** 24,973 km

mass 8.684 x 10²⁵ kg

mean density 1.285 g/cm³

gravity** 869 cm/s²

escape velocity** 21.3 km/s

rotation period (magnetic field) 17 hr 14 min (retrograde)

inclination of equator to orbit 97.86°

magnetic field strength at equator 0.23 gauss

tilt angle of magnetic axis 58.6°

offset of magnetic axis 0.31 of Uranus's radius

number of known moons 27

planetary ring system 10 known rings

*Time required for the planet to return to the same position in the sky relative to the Sun as seen from Earth.

**Calculated for the altitude at which 1 bar of atmospheric pressure is exerted.