1. I stepped outside my home after dark to let my Dog take care of business.2. I was standing facing west when this big boomerang shaped object came over top of the Pine Trees in back of my home.3. I thought it was a C141 or aircraft similar until I realized there was no tail section, and it was way to quite.4. Slow moving, to slow to stay aloft like it was. Straight line flight out of my sight to the east.5. My feelings were mostly disbelief of anything that big flying that low, that quite, and that slow. Scared my Lab. She hauled tail to the house.6. It went out of sight to the east.