Saw a circular craft approximately 30 foot in diameter. It was glowing a green/purple rather subdued. I did not like the color. It hummed when it was motionless. It looked to be about 100ft high and almost directly overhead.

I was 7 years old and was not dreaming as my father told me I was when I went to my parents' bedroom and woke him up to tell him what I was seeing out my south facing window.  The object became completely silent when it moved back and forth (west-east) a short distance of perhaps 50 feet.  When I returned to my bedroom the object was gone.  A very interesting experience for a 7 year old.