Damn! That's an absolutely amazing start,
ojsdad. It almost borders on ridiculous.
With just those handful of systems, you could establish a pocket empire and build tall, if you wanted to. I'm guessing, however, that you're not gonna stop with that...
Wow. I thought my three planet system was a great find but this is pretty awesome.
I believe that in the vanilla game, you won't find more than three habitable planets in a star system (excluding Sanctuary). Systems with four or more planets are only possible with mods.
Cool! I have only successfully complete one archeology research project. It must not have had any particularly important findings because I cannot recall anything about it.
The rewards from completing archeology sites can be rather uneven, but I find that's part of the fun. Sometimes you get just a minor reward ("That's it??"); sometimes it's a nice chunk of research, resources, unity, etc.; and sometimes you get a Relic, which are...quite nice.