strange triagle

On the evening of September 21 1991 my cousine his father and I were standing in the back yard of my uncles sisters house looking up at the sky watching a meteor shower event.We were wright in the middle of town looking above a church when all of a sudden out of nowhere this triangular object appeared in the sky. The object was as black as the night sky and if we were not looking at that exact spot we would have never seen the object. The object was huge in size I would guess the size of a football field it had what appeared to be round circles at each point of the triangle.The circles appeared to be some sort of thrusters but made no sound what so ever,it was as if they were trying not to be seen.The perimeter of the triangle looked cylindrical in nature .The object came straight down for about 1 minute then glided forward for another minute or so then vanished. I think it was trying to avoid the meteor shower but who knows.