taking a picture of night blooming cereus cactus at 9pm. craft came from north over ranche style house. lots were one quarter acre. hovered over my head approximately 300 ft in air. Had pool in backyard on lights were on. caft was silouetted against the night sky. Full moon to boot. The craft had soft smooth edges. A central disc in the middle of the craft and a disc at each angle. I found myself looking up at the object, then back looking at the cereus cactus. I looked up again and the craft started slowly taking off. It was now 2300. I ran into the house and asked a friend to come out. He witnessed the craft leaving the area.Craft was totally dark, no sounds were made by the craft