Visibility III / V
A giant star clearly started to fall from the sky until it went out in the middle of falling. I thought I was looking at Venus, until suddenly, it fell straight down at a clear speed, disappearing after a while (not behind an obstacle, but turned off). It was visible for so long that I had time to stop and realize that I was watching the fall. It was brighter than Venus, but it didn't catch my attention until it fell and I can't say if it had been there before. Nothing behind, just a huge and bright shooting star.