3 circles flying close together, motionless, and without a sound!It was 1am and I was letting the dogs out. I was admiring the clear sky and the bright stars when I saw 3 circles moving together in a straight line. I saw it less than 10 seconds... But enough to scare me. It wasn't birds... No flapping or fluttering. Not a plane or helicopter... Moved across the sky too quickly and didn't even make a sound. The flight was direct... Didn't steer off path. Was from northeast heading southwest. I hope someone else described this thing!