Sailor Theory: Kinmoku and the Starlights

In the Sailor Stars arc of the manga and anime, we find that the 3 Lights, Sailor Starlights, are looking for their Princess Kakyuu after the mother planet/Star, Kinmokusei or Kinmoku. Here's a theory I made about the Starlights and Kinmoku.

The Starlights and Kakyuu
To star off, I'll talk about the known residents of Kinmoku: Seiya, Yaten, Taiki, Kakyuu's lover and Kakyuu herself. Despite appearance, kingdoms (or kingdom in this case) are of the whole planet instead of just the country on earth. We know little about the Tankei kingdom, except the princess and possibly prince (Kakyuu's lover). You might have heard the "Starlights getting their power from Kinmoku's moons theory". It is possible, but there's still that possibility of Kinmoku being a star...