Neptune is the eighth and farthest known planet orbiting the Sun. It is the fourth-largest planet in the Solar System by diameter, the third-most-massive planet, and the densest giant planet. It is 17 times the mass of Earth. Compared to Uranus, its neighbouring ice giant, Neptune is slightly smaller, but more massive and dense. Being composed...
Apparent mag.
7.67
Distance
4300000000
Mass
102430
Radius
24622
Temperature
72 K
Orbital period
164.8 yr
Discovered
1846
