Initially we thought it was some type of fireworks but it did not explode. It was very bright white in the center and blue around the edges. We were facing south and it entered my sight east heading west. I never heard of a fireball but looked up what this sighting could have been and found examples along with where to report it. I saw it for about 4 seconds and my husband caught it later perhaps just about 2 seconds. Truly amazing experience.