Neptune
Neptune is the eighth and farthest-known Solar planet from the Sun. In the Solar System, it is the fourth-largest planet
Neptune is the eighth and farthest-known Solar planet from the Sun. In the Solar System, it is the fourth-largest planet by diameter, the third-most-massive planet, and the densest giant planet. It is 17 times the mass of Earth, slightly more massive than its near-twin Uranus.
Neptune facts
- Moons: noon
- Orbit Distance: 57,909 227 km (0.39 AU)
- Diameter: 1,392 684 km
- Orbit period: 88 days
- Mass: 1.99 x 10^30 kg (333,060 Earths)
- Surface Temperature: -173° to 427°C
- First Record: 14th century BC
- Recorded By: Assyrian astronomers