Visibility III / V
The western fireball camera of the Ursan Kauppi tower in Tampere showed a strange-looking shadow in the sky. Already 5 degrees behind the horizon, the sunlight cast a shadow from the steam cloud of the beach tunnel ventilation pipe into the sky. The camera that described the phenomenon shows a near-IR band - the visible light is cut off by a filter mounted in front of the cell.
The direction of the sun is slightly to the left of the link mast.
The phenomenon was visible for a few minutes.