Three large orbs of light moving in repeated patterns, but changing patterns after approximately 10-20 minutes.As I walked out of my house, I initially heard a strange mechanical type of sound which lasted approximately 2 seconds. I then noticed some lights in the sky moving in a set pattern. Three large balls of light - looked like large spotlights - moving in various patterns in the southeastern sky. Not sure when it actually started, but I spotted it at approximately 1:15 AM. Light pattern was in independent eclipses - like an atom circling a nucleus. Then the pattern changed to larger circles repelling each other. Then the pattern changed to two lights in a figure eight pattern. We tried to photograph it, but the cell phone didn't pick up anything. Finally went inside after about an hour but the lights patterns were still occurring.