We saw this as a group of 4, it made a perfect circle pattern as shown in the video for roughly 20 minutes before we went inside (we were hungry/scared). We had noticed it roughly 700 meters before my apartment and we had felt that it followed us home keeping us in the centre of its circle, it made no noticeable noise and gave us an extremely eerie feeling. Two of us are alien believers two of us were not and the other two had no explanation and also described the same eerie bone chilling fee...