i walked by the bedroom window to see the weather and saw three bright red lights just to the right and a little above the penobscott building just hovering. i went to get my binoculars to get a better look. they are 10x, i then could see each red light was really three red lights stacked on top of each other and with space in between. then the object slowly rotated and now i could see set of three white lights much dimmer than the red light. i also could see a very dim reflection of city lights on one side of the object. it was snowing lightly at the time. i estimate that it was about a little over a mile away, therefore it was larger than a helicopter. which we see very often over the city. i watched for perhaps five minutes it did move around slowly but not much movement. my wife also saw the object. after some time it slowly flew off the south which would be over the detroit river and i could no longer see it. i am not saying this was a et spaceship, but it certainly did not have normal aviation lighting. no green no strobe lights ect. perhaps it was a drone but it had to be a big one. i know it was at least one mile away because it went behind the ally building as it left the area. thanks.