I mean sure, but its still headcanon rather than canon. if there were multiple moons and thus that close to the planet, wouldn't people have noticed and known about them? Unless they existed before and were wiped out? Maybe the Luanrians were from one of these moons?
But again Oda has not said there are multiple moons but I was one of the people pushing there are multiple moons for years. There's just nothing yet to prove it canonically, but I can see Oda doing it as a plot twist later.
If there are multiple moons in existence right now, would that not give Minks so much more opportunity to use Sulong then too? Would it not fuck heavily with the oceans of the OP world and even the gravity acting on it and such? I know planets can have multiple moons IRL if I remember right but I'm not sure how it affects them, I haven't studied Cosmology since almost half a life time ago now for me lol.