Bright light i saw for 1 or 2 seconds. Looked like a very bright star. The. Shot straight up into the night sky. Getting smaller

Bright light bigger than a star. Stayed in position for about 1 second. Then shot straight up into the night sky getting smaller and dimmer until i could not see it anymore. This lasted about 3 seconds maybe 4. It was bigger than a star and bright white. The speed it traveled straight up must have been incredible. I have know idea bow fast it could have been traveling but based on where it was and how fast it went straight up and became dimmer and smaller until i could no longer see it. It must have been traveling faster than anything we have know thus far. This is not a joke. I saw it. It was real. I dont bevieve in ufo's but i cant explain it.