West Bend/Jackson area - bright. white lighted triangle shaped object in the skyI was on my way home to West Bend right around 9:00 p.m.ish going north on 45. I noticed a light in the sky and originally thought it was a low-flying airplane. The light coming from the craft was yellow and white in color and it actually kind of looked like I was seeing it on a foggy day because the light was hazy, but still bright enough to get my attention. As I was looking at it, I realized it wasn't an airplane because it was kind of just hovering there. So I concluded it was a helicopter. But then it started to move smoothly to the left, then the right, then dip down on an angle and then then up. I was asking myself out loud: "what the hell is that?" over and over again. As I was driving, just before I came to a line of trees, it turned. I then was able to see the underside of it ... it was triangle in shape with lots of bright, bright white lights. Then the trees got in the way. When I finally passed through the trees, it was gone.