While taking an evening walk, I looked up and saw a rectangle shaped object moving eastwast across the sky. It seem to have a squared edge with 4 circular lights then a gap the same width and then 4 more circular lights across the edge. I was thinking about all the things it couldbe...i.e. a spider web across my eye sight, a reflection from a plane, a plane, but they were quickily ruled out. I was keenly focusing on it as it was about to reach a tree line and before it reached the trees it seemed to evaporate.