Runeterra

Runeterra (meaning magic earth) is a plane of existence composed of the physical realm: a oblate spheroid planet and the Spirit Realm. The currently known continents the planet comrises are Valoran and Shurima. It also boasts several large bodies of water, such as the currently known 18 Seas (like the Conqueror's Sea and the Guardian's Sea), and 2 Oceans with several archipelagos and islands around them (like Ionia, Serpent Isles, and Shadow Isles). The planet revolves around a G-type star while a natural satellite moon revolves around the planet. Runeterra's sun and moon mirrored equivalents also exist in the spirit realm.