In 1997, my wife and I saw a large black triangle of size 3 or 4 passenger jets (type Boing), passed over our house at the time, later moving slowly became translucent and vanished into thin air. At the bottom of the object light orange had ring-shaped edge throughout the several rings on the edge and bottom. All the rest of the structure was black. It made no noise nehum. My wife and I could not leave the place, I can not assess the time of observation. The sky was very clear and cloudless starry, there was no moon in the sky, at least from our position. I know very well all types of aircraft, satellites, etc.. it was bizarre.Hellington