To see an arrangement of parts or elements or in the sky to see a constellation of planets, when you are dreaming, can be interpreted as suggestion that something in your life was apart, but now it is coming together. The situation in your life is going to become better, but in a complex way. Constellation also has the symbolic significance of a mental processes. You should consider what it is, that the constellation in your dream is describing or representing.
Read more about dreaming of Constellation in other dream meanings interpretations.