Pluto I
| Charon Statistics | |
|---|---|
| Discovered by | J. Christy |
| Date of discovery | 1978 |
| Mass (kg) | 1.77e+21 |
| Mass (Earth = 1) | 2.9618e-04 |
| Equatorial radius (km) | 635 |
| Equatorial radius (Earth = 1) | 9.9561e-02 |
| Mean density (gm/cm^3) | 1.83 |
| Mean distance from Pluto (km) | 19,640 |
| Rotational period (days) | 6.38725 |
| Orbital period (days) | 6.38725 |
| Mean orbital velocity (km/sec) | 0.23 |
| Orbital eccentricity | 0.00 |
| Orbital inclination (degrees) | 98.80 |
| Escape velocity (km/sec) | 0.610 |
| Visual geometric albedo | 0.5 |
| Magnitude (Vo) | 16.8 |