Seen UFO when getting a little air

I went outside last night because I wanted to get some air from cooking all day and I looked at the sky because I wanted to se the stars like I always do. Then about 3 minutes later I see a disk like object in the sky floating there. I thought that it was a star at first because it was a little bright. The object left an aura and had lights. I stared at the disk and was stunned. The disk floated in the same spot for about two minutes then it zipped away in almost a blink of an eye. I was very stunned to see what had happened.