Recognised as Planet
Uranus
- Planet
- 0.92× Earth gravity
- Orbits the Sun
Uranus is a planet with a mean radius of 25,362 km and a surface gravity of 9.01 m/s², which is 0.92× Earth's, so a 70 kg person would weigh 64.2 kg there. Escape velocity is 21.38 km/s. It is its axis is tipped past 90°, so it effectively rolls along its orbit.
Physical properties
Mass86.81 × 10²⁴ kg≈measured
Mean radius25,362 km≈
Circumference159,354 km
Surface area8,083,079,690 km²
Volume68,334.3557 × 10⁹ km³one cubic kilometre is 10⁹ cubic metres
Mean density1,270 kg/m³water is 1,000 kg/m³
Gravity and escape
Surface gravity9.008 m/s²0.917× Earth's
Escape velocity21.375 km/sthe speed needed to leave without further propulsion
A 70 kg person would weigh64.2 kg-forcemass is unchanged; only the weight differs
A 1 kg mass would weigh9.008 newtons
Fall in 1 second4.504 mfrom rest, ignoring any atmosphere
Rotation and orbit
Day length (sidereal)17.24 hoursretrograde: it rotates the opposite way to its orbit
Orbital period84.021 Earth years
Orbitsthe Sun
Mean distance from the Sun2,867 million km19.164 AU
Light travel time from the Sun159.39 minutes
KindPlanet
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