My family often goes watching the stars at a very nice spot! Then I noticed a weird object that appeared out of nowhere. It was pretty fast. It was a sort of grid with purple lights. I took a picture with my phone, which has a pretty good camera, therefore I was able to zoom in. We first thought it was the ISS due to its speed and size, tho we checked afterwards and at that time (13/05/23 23:45 UTC+1 Summer Time) the ISS’s location was above China and therefore excluding the ISS, it was about 2-3km above the ground, it first flew over Clervaux, then over Munshausen and then over Marnach where it finally disappeared behind the trees!