My husband and I went outside approximately between 9:15 and 9:20 to set off a few fireworks and watch neighborhood fireworks. At approximately 9:30 we noticed and object traveling from the east to the west then southwest. The object appeared to have 3 reddish/reddish orange lights in a triangular pattern. It made no sound. We observed it for approximately 5 minutes. It seemed to be really high but really big and followed a straight line and did not waiver. My husband estimated that when it suddenly disappeared it must have been over Illinois or maybe even Missouri. The object did not disappear behind trees, it disappeared from the sky like turning out a light. Several planes flew over in the next 15-20 minutes going different directions and altitudes. All observed to have blinking lights and you could hear the engine on these planes. I tried to take a video of the object with my phone but it was traveling the direction of the moon and it did not show up on the screen.