Cosmic Scale
Uranus vs Neptune: size comparison
Uranus is about 1.03 times wider than Neptune: 50,720 km across against 49,240 km.
Compare them in 3D, at true scale
| Uranus | Neptune | |
|---|---|---|
| Diameter | 50,720 km | 49,240 km |
| Mass | 8.68 × 10²⁵ kg | 1.02 × 10²⁶ kg |
| Light crosses it in | 0.17 seconds | 0.16 seconds |
- Uranus has 1.2 times less mass than Neptune.
- Light takes 0.17 seconds to cross Uranus, and 0.16 seconds to cross Neptune.
Uranus: It rolls around the Sun on its side, tilted 98 degrees.
Neptune: Its winds are the fastest in the Solar System, over 2,000 km/h.