Seen a bright perfectly circular pulsating object in the sky disappearing and reappearing ... But was disappearing and reappearing to the left and right, up and down in the same little area... So I started recording it on my phone. It looked like a really bright star pulsating before it starts to fall. But when I zoomed in on it, it was perfectly circular and was not pulsating but looked as if it was spinning in circles extremely fast that it looked like it was pulsating