Starlike object gives dazzling light show.I had walked out my front door to smoke a cigerette, when a what I thought at first was a very bright star caught my eye. It was very bright, far brighter than the other stars but what I thought was odd was that there was fairly thick cloud cover that night and when the clouds thickened, it blotted out all the neighboring celestial bodies but not this star. As I watched perpelexed it rapidly crossed the sky from East to West in a very rapid motion. I ran inside and got my girlfriend and her digital camera. We watched the light for about ten other minutes. It changed it's postion several times. It lowered it's altitude and then would slowly raise back, it also slowly floated back and forth across the sky. Then a plane flew by and it dimmed itself rapidly, when the plane past it grew very bright. I thought this was caused by the cloud cover but at that moment it was in a clear patch of sky. It did this several times and them it dimmed itself and vanished. I grew up watching planes and helicopters and I know that's not what this was, I don't know what this was but it behaved differently than anything that I've ever seen.