Very bright object flies straight up and dissappears.On Thursday 29th of August, we went outside on our 8th floor balcony before going to bed as we always do, about 21:00. My husband remarked that the stars were bright but that one in particular seemed very bright. As we looked, the “star” which was bright white, shot straight up and disappeared into the sky. The object was brighter than Venus and somewhat larger. It was not lights from an aircraft as the colour and intensity was different, just like a very bright star. It was about 45 degrees above the horizon and about 15 degrees east of due north.There is virtually nothing to the north of us and the street lights are “low light” which gives us a nice clear view of the stars and aurora when it is visible. The placement of this “star” caught both of our attention at the same time and we both saw it shoot straight up and disappear at the same time. We haven’t really seen anything quite like this in this location, although we see high and fast flying aircraft and some curious things from time to time, but this was just very obvious and completely different.I spent many years working on fighter aircraft in the USAF and as I said, we see some interesting lights and curious aircraft from time to time, but I know aircraft and how they fly and this was nothing like anything I have seen.