Woke up at 300 am , compelled to go over to window, bright star light approaches windowshade.

I was around 10 years old at the time when this happened.  I am certain it was not a dream.  I woke up at 3 am for no apparent reason.  I was compelled to go over to my window and open the window shades in my bedroom that sits on the second story and faces south east.  When I opened up the window shade I began fixating on a brighter than usual star in the clear night sky.  A moment later the "star" light began to move at a moderate pace toward my position. I began to get a little anxious as this was happening.  The circular light kept on getting brighter and larger as it approached.  At this point I was beginning to freak out.  The circular light was then about 500 feet from my window and was incredibly bright and large in shape.  My guess is that it was 100 feet wide by 100 feet tall maybe.  The object at this point was about a 20 feet above me in height. What I remember is that it was taking up most of my field of vision.  At this point I slammed the window shade and ran quickly into my parents room to wake them up.  We went back to the window, my dad did I was too afraid and there was nothing there.  Now this sounds like a bad dream, but I know it was real.  I have had bad dreams though they take place in my bed not standing at a window.  My sister too this day remembers this night as well, as the night her brother claimes to have seen a UFO.
 I am writing this now because I recently watched a televsion show about the Highland, IL lights that brought me back to my experience.
Witness indicates that the date of the incident is approximate.  PD