I was driving along the Illinois river on my way to talequah. The sky was dark and I could still see the stars and this one star was the brightest and biggest in the sky. I was watching it, it seemed to twinkle like a star. It was too big to be a star and I noticed it moving slowly. I kept watching it for a few mins then when i turned away for a few secs I looked back and it had vanished. I checked the other directions around the sky and couldn't find it. It was early morning sometime shortly after 7 am, the sky was still mostly dark but the sun was starting to come up. It must have flown visible during the night thinking people wouldn't notice it and as it got light out it switched on its cloaking device. I have never seen anything like it or any unidentified object. I don't usually believe in ufo phenomena but what I saw was a ufo and appeared to be a large one.