K,<br><br>I can barely navigate from my house to work. As far as celestial navigating goes though, I thought that the math was already done. Is it not "take a sight, check the table, presto--your location. I know, I know, you have to know the time, and I think you need two sights, but I'm pretty sure the math is already done. All you have to do is check a table/chart somewhere. The big-brains with the slipsticks in their heads at the Naval observatory have already done the math. Anyone confirm/deny this?<br><br>Take care,<br><br>Andy