Visibility III / V
6.4. it was still dark enough for the northern lights. When twilight came, the sky was strapped by an east-west belt of northern lights passing through the zenith. At times, the belt made a thoughtful bend, from which Otava managed to shine against a dark background; suddenly a momentary warp formed on both ends of the belt until the fire began to dance on the north side. Eventually, the show subsided into the spotted greenery of the sky.