Phobos

Discovered 12/08/1877 · Asaph Hall

Mean Radius

11.1 km

Gravity

0.01 m/s²

Temperature

0 K (-273°C)

Orbital Period

0.3 d

Orbit Distance

9,376 km

Physical Properties

Mean Radius11.1 km

Mass1.0600 × 10^16 kg

Surface Gravity0.01 m/s²

Density1.872 g/cm³

Escape Velocity0.01 km/s

Mean Temperature0 K (-273°C)

Axial Tilt0.00°

Rotation Period0.77 h

AtmosphereNone

Orbit around Mars

Semi-major Axis9,376 km

Eccentricity0.015100

Inclination1.0750°

Orbital Period0.32 days

3D View Image Gallery

Data Sources

Physical & orbital data: Solar System OpenData API (api.le-systeme-solaire.net) · Orbital elements: NASA JPL / IAU Working Group on Cartographic Coordinates