![]() |
| Astronomical symbol for the Moon. (From Egyptian) |
| Mass | 7.35*1025 g |
| Radius | 1.738*108 cm |
| Density | 3.34 g/cm³ |
| Orbital Period | 27.322 d |
| Orbital Distance | 384.4*108 cm |
Satellite of Earth
Interesting Fact:
In its orbit around the Earth the moon constantly shows the same face towards the Earth with little variation. (There is a slight wobble.) This fact was caused by the long-time action of what is called the "tidal force" or "differential force" (see: Differential Torque) which force is a result of gravity and slowly works to cause the same effect in all spinning bodies in an orbit.



