Luke - how do we know that? I mean really, Obi had never heard of the place, and when he asked Dexter if it was in the Republic, the answer was 'no'. Besides, it's too far out of the 'core worlds' to make a good capital.
With Muunlist, i've seen it mentioned a few times in books. It's an Imperial world, but during the Clone Wars it was the capital of the Banking Clan (i think), so it's as good a capital as any.
Dark Lord of the Purists
Inter Arma Enim Silent Leges