Witness Account

My husband and I were outside around 8:00 pm looking at the two planets, something very large appeard moved East in the sky at a very high rate of speed with a very bright white light then was gone within 4 seconds. We checked our time is was 8:05 pm. There was no sound from the object. There was a plane heading West towards the object that should have seen the large object and the very bright sold white light. I asked a neighbor if they seen anything and they were not outside and did not.