Saucer shaped craft illuminated with multiple colored lights and round port hole windows rotating

Brother and myself watching tv. When brother noticed multiple colors outside window at night. We screamed UFO. Told mom and we ran outside looked up. Craft was a dark metallic saucer with multiple colored lights all over top and bottom hemisphere with dimly lit port hole circle windows at center of craft rotating around the middle of the craft. Craft was about 600 to 700 ft traveling silently in a Nw/ SE direction. We watched it until it disappeared over tree line in the distance. Mother called police, they said might be a Balloon.It was no balloon. Not a conventional aircraft. Shouldn’t of not been able to fly had no wings. Rotating saucer. I was 12 and brother was 15 at the time. Mother is deceased.