Black Triangle Sighting in Bay City, Michigan on October 14th 2015 – Large triangular object, shimmering, almost invisible, very high in the sky, lights at edge, center seemingly in a line, but all very distant (space station?)

My son and I were taking out the trash to the roadside; he had gone out first, I followed a minute later. He was looking up in the sky and asked, "Do you see something up there?" pointing to the eastern sky. I looked and straining my eyes and blocking out an additional ambient light, I could see a faintly shimmering object, triangular, but must have been very large because hit appeared to be high in the sky. We watched it together and the lights, also faint and dim and star-like would occasionally seem to run in a straight line and then seem to quickly trace the edge of the whatever it was. I really don't know what it was; I have never seen anything like it. It just seemed to be very high up, wondering if it could possibly have been the international space station? I went out 1/2 hour later and the object was still in the same part of the sky.