Mysterious light over Winslow,AZ unsuccessfully trying to pose as a star.I was driving west on i40 when a bright star started to bother me. It seemed bright but at times went dim. I thought it was just a bright star at first but then it got a lot bigger, it didnt appear to be an airplane, there was only one light and it wasn't blinking like planes do. I reached down and got my flashlight and flashed the object thru the front window while driving- the object became bright and dim like a response. I felt like it was watching me so I pulled into the Pilot TS in Winslow,AZ and parked. I went out to the outskirts of the parking lot/near the edge of the desert {NW corner} and watched the light. It was hard to determine the size or distance-it was about 3 thumbs up from the horizon. I got scared and went into the ts. I came out about 20 min later. went to the same spot and the object seemed to be at a distance toward Flagstaff. It was 1 thumb from the horizon if even that. I went over and got another driver and told him about what i saw and where i saw it and showed him the light, just as he looked at it, the light flashed bright again. He confirmed that it was to bright to be a star. The reason i didn't believe it was a star was because when I was driving I noticed it move; it was south and i saw it move from the southwest part of the highway to right in front of me. It went about 2 horizontal thumbs within about 5 to 6 seconds at a hight of about 21/2 thumbs high. It could have been picking up my CD radio frequency (iroc) that i was playing over the radio. Needless to say, I didnt have a warm fuzzy feeling about these guys. I thought it pretty ironic when i later turned on the xm and heard you on coast discussing ufo siteings the very night i encountered one (for the first time).((NUFORC Note: We suspect the witness may have been looking at Venus. PD))