This image is composed of 30 stacked frames taken without a tripod. The exposure was decent at f/11, 1/1600 and ISO 1600 using a lens at 500mm. I would have preferred a slower shutter speed (with lower ISO) but did not feel like setting up the tripod at 4am. Stacking was used to align the images and average out the noise, then some processing was done to bring out more detail and color.