Board Thread:Suggestions Forum/@comment-4750818-20150208133120/@comment-27723099-20150216164840

Yes, Arda is round in the third age but Arda is not part of a solar system. The sun of Arda is a vessel that runs through the sky, holding the light of Laurelin, one of the two trees that provided the world with light before Morgoth destroyed them. The sun ascends in the east and decends in the west. But Arda itself is not moving or rotating.