Mapping the sky

Just a quick one, not sure if I mentioned this before, but this is how I'd like to handle astronomy in a dRPG:

When the skill is active/selected and you look into the sky, the stars will slowly coalesce to reveal the cardinal compass points and some markers inbetween.  So characters with the skill (and no compass - which I feel should be an item that needs to be used) can look into the sky to orientate themselves.

It should be an active skill though, as sometimes its just nice to look at the sky withour forcing the stars to spell out N, S, etc.

That's all for now.