I was traveling south on 76th St, leaving the Thiensville area, at about 8:30pm, when I approached the stop light at Mequon Rd., which goes East/West. I happened to look up at the sky, and to my right, which would be West, observed eight star-like objects traveling in perfect formation, in a Northeast direction, for about 10 minutes. I did not notice any flashing red or green lights, so I knew that they couldn't be planes. And, I don't, think they were weather balloons, as I think they were too low in the sky. I also observed a brighter star-like object, which was somewhat lower in the sky, but don't know what happened to that object. The eight dimmer white lights, as stated above, were all traveling in perfect formation, in a Northeast direction. I lost sight of the objects, as I continued driving south on 76th St.