My freind and i were watching the stars lying on a long chair on the deck of a boat on the Nil. The night was clear without any moon. Then we seen a large black triangle flying from south to north in the very dark sky.It was 2 ranges of lights (about 10-11) on 2 edges pointing to the north. The lights were large like 10-12 cm, but the same intensity of a star, without any fasces. The engine edge away, slowy, smoothly whis no sound. It appear and disappear at the same distance from us, like if the lights were inside the structure and needs to be above us to be seen. If it was at 200 metres from us then it was about 15 metres wide.