Approximately 2:15am I went to close patio door when I saw what first looked like a really bright star that was moving in a side to side motion. Then I saw red and green lights flashing so I thought it was a airplane in trouble. This is why I started to stare intensely so I could report the plane. Then blue lights were added to the mixture and the object began hovering, swinging side to side in a U motion. After about 45 minutes it disappeared.