GalaxyCalc

Neptune

Planet
Physical Properties
Mean Radius
24,622km
Equatorial Radius
24,764km
Polar Radius
24,341km
Mass
1.02e+26 kg
Volume
6.25e+13 km³
Density
1.638g/cm³
Gravity
11.15m/s²
Escape Velocity
23,560m/s
Flattening
0.017
Average Temperature
55.0 K (-218.1 °C)
Axial Tilt
28.3°
Semimajor Axis
4.50e+9km
Perihelion
4.46e+9km
Aphelion
4.54e+9km
Eccentricity
0.011
Inclination
1.769°
Sidereal Orbit
16.72 hours
Sidereal Rotation
0.00 hours
Mean Anomaly
256.228°
Argument of Periapsis
256.932°
Longitude of Ascending Node
131.823°
Discovery Information
Discovered By
Urbain Le Verrier, John Couch Adams, Johann Galle
Discovery Date
23/09/1846
Raw Data
Moons16
Triton
Néreïde
Naïade
Thalassa
Despina
Galatée
Larissa
Protée
Halimède
Psamathée
Sao
Laomédie
Néso
Hippocampe
S/2021 N 1
S/2002 N 5