Encyclopedia > Mars > Satellites > Deimos
As Phobos, Deimos is much like an asteroid captured by Mars probably: it is essentially made of carbon compounds and water.
Characteristics | Values |
---|---|
Distance of Mars | 23 460 km |
Average size | 10x12x15 km |
Visual magnitude | 12.7 |
Revolution period | 1 day 6 hours |
Orbital velocity | 1.4 km/s |
Inclination of the orbit of Mars' equator | 1 to 3° |
Orbit eccentricity | 0.0002 |
Mass (Mars=1) | 3/100000000 |
Density (water=1) | 1.7 |
Escape velocity | 6 m/s |
Reflectivity (geometric albedo ) | 0.07 |