The Valar, in the High Tongue, or the Belain in more common Elvish, are the Powers of the West who dwell in the Undying Lands beyond the Sea. It was they who Sang the world into being, under the direction of Iluvatar, the Creator. I suspect that we Hobbits were created by the harmonies of Yavanna, Lady of growing things, and Aulė, the Lord of the Earth itself. Although, my boy, with your abiding love of stars I suspect that most of your worship would be accorded to the Lady Elbereth, or Varda, the Star Kindler.
Frodo indicated his understanding.