A note to the untrained reader: This following post contains mathmatically caluclations of the DU lore.
A note to the trained reader: This following post probably contains glaring and stupid mathmatical errors.
I saw a post on the fourms a while back about the distance of Allioth, though it was based on mere speculation. But, if you look at the official lore, it gives us some details about Novark's travel to Allioth that we can make caluclations from.
Travel Time: T