Explore the fascinating properties and orbital characteristics of Phobos. Detailed scientific measurements and discovery information about this celestial body.
Mean Radius
11.1 km
Equatorial Radius
13 km
Polar Radius
9.1 km
Flattening
N/A
Density
1.872 g/cm³
Surface Gravity
0.0057 m/s²
Mass
1.06 × 10^16 kg
Volume
5.78361 × 10^4 km³
Escape Velocity
11.39 m/s
Dimension
26.8 × 22.4 × 18.4
Average Temperature
N/A
Axial Tilt
N/A
Discovered By
Asaph Hall
Discovery Date
12/08/1877
Alternative Name
None
Orbits
Mars
Semi-Major Axis
9,378 km
Perihelion
9,234 km
Aphelion
9,518 km
Eccentricity
0.0151
Inclination
1.075°
Orbital Period
0.32 days
Rotation Period
0.77 hours
Mean Anomaly
N/A
Argument of Periapsis
N/A
Longitude of Ascending Node
N/A