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Solar
Moon

Deimos

Orbital elements

Semi-major axis
0 AU
Eccentricity
0.0003
Inclination
0.93°
Orbital period
30.3 hours
Epoch · J2000
J2000

Physical properties

Mean radius
6.20 km
Mass
1.476 × 10¹⁵ kg
Density
1.471 g/cm³
Rotation period
30.31 hours

Visual & observation

Geometric albedo
0.068
Representative colour
#9A8D80

Discovery & classification

Discovered by
Asaph Hall
Discovery date
12 August 1877

Sources