Neptune
🚀 Visited by spacecraft
📋 A written introduction is coming — for now this page shows official values only.
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Distancia a la Tierra
29.1068 AU
4,354,318,797 km
Tiempo de la luz
4h 2m
a la velocidad de la luz
Computed 2026-11-04 00:22 UTC · planets astronomy-engine (VSOP87) · comets JPL elements (two-body)
Physical data
- Mean radius
- 24,622 km
- Equatorial radius
- 24,764 km
- Mass
- 102.4092 × 10²⁴ kg
- Density
- 1.638 g/cm³
- Surface gravity
- 11.15 m/s²
- Escape velocity
- 23.56 km/s
- Rotation period
- 0.67125 days
- Orbital period
- 164.7913 years
- Albedo
- 0.41
- Absolute magnitude V(1,0)
- -6.87 mag
Source:NASA JPL Solar System Dynamics · checked 2026-11-02 ↗
Orbit
- Semi-major axis
- 30.0699 AU
- Eccentricity
- 0.00859
- Inclination
- 1.77°
Source:NASA JPL Solar System Dynamics · checked 2026-11-02 ↗
Related
+ 2 small moons without names (provisional designations in the NASA JPL table)
In everyday life
- Its diameter is about 3.9 times Earth's (radius 24,622 km ÷ Earth's 6,371 km).
- It takes about 164.8 Earth years to orbit the Sun.
- Sunlight needs about 4.2 hours to reach it on average (semi-major axis 30.1 AU) — versus about 8 min 19 s to Earth.