I went outside to have a smoke and was checking out the stars (first clear, warm night in a while).I was sitting on my steps facing south looking at Saturn which was at about 70 degrees off the horizon when I noticed very dim almost foggy lights in a triangle formation traveling west to east. It was completely silent and moving very fast, but much lower, faster and larger than the usual air traffic coming to and from Pittsburgh. This thing had no strobes or FAA lights just three VERY faint white lights at each corner (about 90% sure it was one object) I would have never noticed this object if I had not been looking in that general direction! It was not a satellite, I see them often. I canï¿½ï¿½ï¿½t stress enough; it was like it was ï¿½ï¿½ï¿½almostï¿½ï¿½ï¿½ invisible!