Its supposed to be a clear night tonight, and I don't think the moon is out. I am excited....two nights in a row. So I am going to go take a few pics here in a bit, but I am too anxious to google this (I will try if time permits), plus I have some other stuff I need to try to get done soon. What is a good exposure guideline for stacking multiple images? (high iso? low iso?, wide open?) I plan on shooting at 18mm. I have read about it in the past as being a great way to even use webcams to get much more light than is possible without one of those tracking machines. Also, is this cloudy area across the middle (which is the second time I have captured it) the Milky Way? This is what I would like to do the stacking process on.