Small lights forming a triangle with large triangular light in center all lights bright amythest in colorWhile returning from Chicago my wife and I noticed a bright purple white light in front of us,We were on M95 in South Republic,MI heading to Ishpeming,MI(upper peninsula).It was between 8:15-8:45 pm on the 1st of November 1999.We at first thought it was an airplane until we saw the light split up into 3 to 4 smaller lights that shot towards the ground then to the right at a high rate of speed.I was curious and did not believe it so I stopped to get a better look.After stopping I noticed that the lights were hovering to the left of my car above the tree line.I remeber this because I had to look out my door glass to see them.The lights were a bright amythest color forming a triagle with a large triangular light in the center and 3 smaller lights one on each point of the triangle you could see a mass behind the lights.The large light stayed still while the smaller ones would make the same movements they would form a line and go dwn and to the right then reform on the larger light in a triangle pattern.After confirming that we were not seeing things we became frightened and hauled ass out of there we watched the lights hover there for about 10 miles in our rearview mirror.If compared to the moon it would fill it's circle,but I could not determine it's size or distance.Our car did not run any different and also returned home on time.We are now believers/