Deimos
Mars 402 Deimos
📋 A written introduction is coming — for now this page shows official values only.
Physical data
- Mean radius
- 6.2 km
- GM
- 0.000096 km³/s²
- Density
- 1.471 g/cm³
Source:NASA JPL Solar System Dynamics · checked 2026-11-02 ↗
Orbit
- Semi-major axis
- 23,457 km
- Eccentricity
- 0
- Inclination
- 1.8°
- Orbital period
- 1.2625 days
- Retrograde
- No
Source:NASA JPL Solar System Dynamics · checked 2026-11-02 ↗
Related
Parent body
In everyday life
- About 12 km across — 3.1% of the 400 km Seoul–Busan expressway.
- One orbit takes about 1.3 Earth days.
- About 23,457 km from Mars on average — 59 drives along the 400 km Seoul–Busan expressway.