Wow! It looks like I correctly figured out the system, but I was wrong with the planet http://i.imgur.com/1JgM8i0.jpg
I believe we will find that this ruins has the same features... Such as Bernard's loop rising where it does... the star it orbits will rise and fall in the same spot and so will the moon... which means we can find planets that have these items visible from the surface should lead us to the next site... i do like CMDR Dreamstate's idea... i think he is really got it down on how to find the spots on the planets... and leprotravel i think your also on to something... now lets apply these theories to the other systems... and see if we can find the other sites... one of them has to be different... i bet its on the farthest system out of the 4....