I was looking at the sea from my house, when suddenly on the horizon i saw 3 white lights forming a triangle in ascending path from south to north (the separation of the lights was like the size of more than 1 coin) the 3 lights rotated together slowly as if it were a single triangular object until reaching almost above my city, the triangle became smaller and smaller, rotating and becoming a unique object light above the clouds until it was totally covered and i stopped seeing it.