Several hours witnessing magnitude of changing colors ,size and shapes moving and emitting energy pulses.

Began at sunset. Still light out. Several hours witnessed. Several videos and photos captured. Naked eye was difficult to see object. Slower shutter speeds on cell phone camera was like a filter allowing more clear viewing of incident. The object changed colors and sizes. It stayed motionless and would move as well. It was full of vibrant changing colors and suddenly would explode into a huge white orb of light and then would shrink back down into changing lights again.