I was looking upward toward the east when i noticed a dim object moving on my left. it was travelling north to south, appx. 50 degrees above the horizon with no blinking lights.I followed it for about 20 seconds when i looked back toward the east. i then noticed a second object following the first. it appeared slightly lower in its flight path and was brighter, but no blinking lights. its path was a just slightly ne to sw, but just barely. i followed both objects, looking back and forth until th first disappeared. i then followed the second until it, too became too dim to see. there was no sound, nor residual jet-engine sound one would hear from a jet flying overhead. about 20 seconds after the second object faded from view a jet did indeed fly overhead, north, about 80 degrees up and from west to east, which is the normal flight pattern around here. the jets lights were blinking as they normally do, and the engine sound occured after the jet passed, as is normal, also.