Saw a huge round object hovering with red light in center,no sound.Took off at a high rate and disappeared

As a child I remember being outside going to join my friends,walking down a path that led from the apartment building and looking up and seeing this round object right above me.It was very big with a red light in the center and I think green and white around.There was no noise such as a helicopter would make.I remember the feeling of being amazed yet scared.I wanted to run but I was frozen in place.There was a beam of light that came from the object.The next thing I remember was being in the car going home and I still saw the object out the window as if following me.I did not say anything to my parent because I was afraid.Then it took off at a very high rate,just disappeared with no trail.
I am writing this because when I tell people(very few) they think I am making it up but I know what I saw and felt.I'm glad I found this site.
Date is approximate.  PD