I live in central Texas, and one starry, cloudless night a few years back, I was outside my parents house on their driveway smoking a cigarette and throwing something in the garbage can outside. As I was walking towards the trash, suddenly I got the random urge to look up at the night sky, to the north/northeast, and my eyes for some reason were drawn to two stars that were just above the eve of my parents’ roof, which resembled just regular stars, white in color and nothing extraordinary about them. As soon as my eyes locked onto the two plain looking stars, both of them, (one right above the other pretty much vertically) began to fade out at the exact same time, and the exact same rate, until they had completely vanished. This also, like the OP mentioned, took roughly 5 seconds, to go from regular bright, but not too bright, to nothing. It was weird as s*** and still have no explanation for it to this day.