I used to live in an apartment with good distant views. Soon after moving in noticed small spots of light seemingly hovering in the sky and then suddenly movin

I used to live in an apartment with good distant views. Soon after moving in noticed small spots of light seemingly hovering in the sky and then suddenly moving at an angle and disappearing. At that point in time they were UFOs to me. Eventually I discovered that the lights were in fact headlights from distant aircraft coming in to land at an airport about 20 miles away. Due to the distance and the height of the apartment the lights didn't appear to move up or down, nor get brighter. Of course, once the planes turned the lights disappeared. At that distance and with the general light pollution, I couldn't hear the planes nor see their strobe or nav lights.