a dot emerging from nowhere, changing colors, flying extremely fast, and having no wings

I'm going for a walk, suddenly I look at the forest in the distance and something catches my attention, but there's nothing there, and then a few seconds later again and suddenly I see a very small visible dot in a very similar color to the sky, which appeared with nowhere, because there was nothing there a moment ago, I start recording and the object flies faster and faster, turns black, then I went to the application that shows the nearest planes and satellites, there was nothing near me, the closest thing was a plane 50 km away which was flying in a different direction