My girlfriend and i were on top of Montage Mountain in Scranton, PA, facing the main stage with the tent (not sure on the actual direction) when off to our left, high up above a mountain in the distance we saw a large glowing orange light that didn't blink traveling right from our point of view at an incredible speed for about 30 seconds, its speed in that direction then slowed down and the light began to shrink, as it decreased in size the color shifted from orange to red and then to white until it finally disappeared due to the Doppler effect that would imply that it was flying away from us.