UFO Sighting in Phoenix, Arizona on 1988-08-01 21:00:00 - Giant disc with red, and blue lights all the way around it possibly gold lights also

In my bedroom 12 to 13 yrs old, my mom came in and said come look at this ,i had no idea what this giant disc was ,the ship flew from east to west slowly making no sound stagerd red and blue lights is what i remember(my younger brother says he remebers gold lights along with the red and blue)around the whole saucer ,it then went from west to east same speed disappearing in the distance,i was astounded, ive never seen anything even close to this and it has stuck with me for close to 30 years (not some light in the sky)