No BS, did i just see a UFO, shooting star, or a comet?? it was no airplane, impossible..?

I was walking my dog just now and was just looking at the stars, and they all looked as they normally do, just wayyyyyyy out there, small little bright dots, but when i stopped I noticed one of those small bright dots was moving, fast, like really fast, and I know what airplanes look like in the air this was no freaking air plane, this was farrrr to high, cuz like I said it looked EXACTLY like a star, it was the same size and of the same brightness of the rest of the stars, except this one was moving at a fast pace, then just dissapeared.. like all crazy bs theories aside, did i just a UFO or was just like a comet or something? there was no tail or anything, just go outside, look at all the stars, thats what it looked like, except this one was moving fast.