two lights, moving SW performing manuevers, then instantly vanishing.I was taking the dog out for an evening walk...I looked up in the clear night sky to see two very bright yellow lights( approx 3 to 4 times brighter than an airplane light) about .5 to 3/4 of a Km away. Both lights were travelling side by side moving SW from my position at a slow rate of speed (Much slower than a airplane). At approx 19:59 both lights moved in opposite directions (on a parallel plane), one to the South the other to the North, at a high rate of speed. The items moved approx .5 Km appart, stopped for about 15-20 seconds, then returned to thier side by side position, slower than the seperation, about 1/4 the speed. I then ran inside to get my wife. Upon returning 15-20 seconds later we observed them continue moving slowly in a SW direction for 2 min when they vanished, almost like some one turn off a switch.