Skip to content
Solar
Moon

Charon

Orbital elements

Semi-major axis
0 AU
Eccentricity
0.0001
Orbital period
6.4 days
Epoch · J2000
J2000

Physical properties

Mean radius
606 km
Mass
1.586 × 10²¹ kg
Density
1.702 g/cm³
Rotation period
6.39 days

Visual & observation

Geometric albedo
0.41

Discovery & classification

Discovered by
James W. Christy
Discovery date
22 June 1978

Sources