I first thought it was green fireworks but in a ball with a tail shape and soon realized that's not what it was. Not sure of the minutes or exact time but some time after 10. Didn't look at a clock at the time. It was bright lime green and very beautiful. It glowed. Have never seen anything like it. I am 64 years old. In a car traveling about 40 mph and it started even with me in the back passenger side and passed us and then was ahead until it was gone below the horizon.