8 yellow lights moving in formation south of helsinki over the sea from east to westwitnessed 8 flying lights - constant yellow light on - in direction from east to west south of helsinki (capital of finland), over the sea. steady flying pace/floating pace and sticking in formation of 5 in the front formation shaped x-like and 3 in the rear formation migratory bird-like spear formation. some distance between formations.disappeared from view when the rooftops blocked them out of sight.managed to get still pictures of both in same picture as well as separately.sky is fairly clear, stars can be seen, light pollution of the city. sea buoys clearly seen.