30 small orb lights in a row

At about 8:50 pm, I looked slightly to the west, almost directly overhead and saw a long string of little round lights in a perfect line moving north/northeast. They were going at least three times the speed of typical airplanes we see flying over us. The flight path of passenger jets is always from west to east  I counted 30 of them, all in a perfectly straight line about 2 degrees apart from each other. That means that the total angle from the first one to the last one was about 60 degrees of angle flying across the sky. There might have been more, but when I spotted them, the first one was getting low on the horizon and was fairly dim.