description
Earth and Moon A unique couple RMoon = 0.27 REarth MMoon = 1/81 MEarth Special case in the solar system RTitan = 0.043 RSaturn MTitan = 1/4400 MSaturn RTriton = 0.056 RNeptune MTriton = 1/4700 MNeptune Le couple Terre – Lune vu par Galileo