star like object moving in a east to west directions suddenly stops. Watch object for about 30 secounds when a smaller light drops from the bottom of the larger light on top.

My mother and I was sitting on the porch of our house looking up at the stars. Then we both noticed a star like object moving from east to west in a straight line. As we watch this object, it stopped. After about 30 secounds, a smaller object looked like it came came out of the one we were watching. We both could see a streak of light form between the original light and the one that looked like it came from the bigger one. Now they both were just stationary. About two minutes later, the original light started to move toward the west again, and the smaller one went toward the east.