Observed spherical dark colored object moving in a NNE direction very slowly

My daughter and I were present for a baseball game. Weather was VFR and clear. No clouds. Aircraft departing Charlotte airport which was running a southern flow were passing overhead in a NE direction shortly after departure, presumable on a standard departure procedure. My daughter spotted a small dark spherical object. I was not able to initially locate the object and so joked that she was seeing things. After a few moments of scanning the area, I too located the object. The object appeared above aircraft paths in the area moving slowly in a NNE direction. Was observed for approx 5 minutes. The we were unable to locate further.