The solar system is oddly shaped in this universe. Which will be explained in later chapters. With the sun in the center in a top down view, and going in a clockwise direction, at the top we have:

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Earth -> El'hirn (Elves) -> ???(To be revealed) -> Mars (M'hakians) -> Drazi (Orcs) ->??? (To be revealed) -> Valec (Beast Men) -> Talarus (Cendarians) -> Earth