quote:Originally posted by ricardomath:quote:Originally posted by MBM:
Does anyone know if there is a name for our moon? Isn't calling our moon, "Moon" like calling my dog, "Dog"? I know Jupiter's moons have names (Io, etc.), what about ours?
I'm not even sure that our "moon" is a moon.
I think that it's too big, relative to the earth, to be considered a moon. I believe that the earth/luna system is actually considered a dual planetary system. In fact, I believe that the moon doesn't revolve around the earth. I think that both the earth and the moon revolve around a point that is outside of thge surface of the earth. That is, the center of mass for the earth/luna system is not a point somewhere underground in our planet, but rather a point out in space, between the two.
Calling the moon a moon is more like calling your dog "cat".
Interesting - is this a commonly held theory?