Moon
Earth 301 Moon
👁️ Naked-eye🚀 Visited by spacecraft
📋 A written introduction is coming — for now this page shows official values only.
Physical data
- Mean radius
- 1,737.4 km
- GM
- 4,902.8 km³/s²
- Density
- 3.344 g/cm³
Source:NASA JPL Solar System Dynamics · checked 2026-11-02 ↗
Orbit
- Semi-major axis
- 384,400 km
- Eccentricity
- 0.0554
- Inclination
- 5.16°
- Orbital period
- 27.322 days
- Retrograde
- No
Source:NASA JPL Solar System Dynamics · checked 2026-11-02 ↗
Related
Parent body
In everyday life
- Its diameter is about 27% of Earth's (radius 1,737 km ÷ Earth's 6,371 km).
- One orbit takes about 27.3 Earth days.
- About 384,400 km from Earth on average — 961 drives along the 400 km Seoul–Busan expressway.