I have another story which happened in 2000. My partner and I were in the kitchen doing the nightly dishes after putting the kids to bed. I was standing at the sink looking out of window where you can see other people's roof tops. About three or four houses down there was a white round fuzzy light (orb?), it was circling their roof top over and over again. Sometimes it hovered a bit, but would then start circling again. I called my partner over, and we stood and watched this light in amazement. I know your thinking it was a light from another source like a spot light or something, but we went outside and checked it out, and nothing could be seen to make this light happen.
The light just kept going in its weird way. We went back inside and watched out of the window for what seems like forever, and it didn't stop, change positions or falter in any way. It was still erratic in its movements. We did live three doors down from a cemetery, but I don't really know if that had anything to do with it. My partner and I think someone might have died there that night? I don't know, but we sure did not imagine this light. It was far too real, with no explanations. The more we stood and watched, the more I believed what I was seeing.
Check out my story "Forever at Camp", I think you'll find it interesting... And a little similar to yours.
BB