Color changing, appears to be spinning UFO over Lake Champlain

It was spotted from the bedroom window of a lake house on Lake Champlain. I had just settled in for the night and was innocently gazing out my window, as one does, when I saw it. The object appeared to be spinning as it changed from green to fuchsia to deep purplish blue to teal and back again. It remained stationary in the sky while this took place. It's still in the sky an hour later, though it doesn't feel like an hour has elapsed. My father went outside to see for himself and captured footage of his own.