FlamingCobra: Remember that astronomical proximity doesn't seem to matter when it comes to forming the subspace network, so stellar drift shouldn't matter. Subspace moves aroud a lot too - Even stable subspace nodes (the ones on the nodemap) will collapse over a long (but never specified) timeframe. The subspace map could have looked very different in 5600 BC. An additonal problem with the stellar drift idea is that Vasuda isn't a modern star name, and we have no idea which star it is.
Can you tell me where you got this from?
It might be Beta Hydri.