Extremely fast satellite (?)I spotted what looked to be a satellite approximately 45 degrees above the southern horizon heading north. It had at least a magnitude 1 brightness. It moved so fast I thought it might have been an airplane, but never saw any blinking lights, or change in brightness until it faded away to the north in the hazy sky. I have seen thousands of satellites and all kinds of aircraft in my 40 years of amateur astronomy, but I have never seen a light, satellite, or aircraft move as fast as this light did. It moved too slowly for a meteor, did not leave a trail, and it crossed the entire sky, from south to north, going directly overhead in less than 15 seconds. The speed of the object is what astounds me and boggles my mind.