Serious -I caught an anomaly in the sky.. thoughts?

I'm not certain what this was. I seen this object in the distance. I pulled out my phone to video it and when I topped the hill there was an Arkansas state police car pulled over on the side of the road. He was out of his car looking up at the object. My instinct was to hold my phone down so he didn't see my with my phone out while driving. I thought I missed getting it on video but once I got home I seen that I actually got it on video. It was about 4ft round, pitch black and didn't seem as if it had any reflections on it at all. It was like a 4ft black hole in the sky. It didn't move a single inch the whole time I seen the object. What are your thoughts??