But let me backpeddle a bit...depending upon your purpose it may not matter. Many of us here are preoccupied with creating plausible, Earth-like worlds that "obey the rules." I recall that you plan to base fantasy novels upon your creation. I think of the maps of many very popular fantasy novels and they don't make a lick of sense when viewed from the standpoint of geology or plate techtonics. But in fantasy the sun may be a portal to the Elemental Plane of Fire and the stars may be pinholes in the curtain of night. Who's to say your map won't serve your purpose? It's a fine looking effort in any event.