Well, to be fair, I actually think Uranus is the moon, and a death-star (hence its advanced technology), more or less, and I believe Enel, with his electricity can actually power it to a certain extent. Enel FASCINATES me, such an interesting character.
I believe the way the Ancient Weapons work is they have controllers.
Uranus, Nami, the Navigator who can perfectly read storms and happens to have an ally named Zeus, controls the skies (the Moon/possibly other celestial bodies).
Pluton, Momonosuke, controls the beings of the land/underground (Zou/other future entities)
Poseidon, Shirohoshi, controls the leviathan Sea Kings in the water
I'm working on a Nami is Uranus/the Moon Queen theory right now. I can't think of a character more associated with the sky than Nami. None of this has anything to do with me beginning to heavily ship Nami with Luffy and believing that she is his Pirate Queen, no sir