This infrared composite image of the two hemispheres of Uranus was obtained with Keck adaptive optics. The images were obtained on July 11 and 12, 2004. The representative balance of these infrared images which were selected to display the vertical structure of atmospheric features gives a reddish tint to the rings, an artifact of the process. The North pole is at 4 o'clock.
Lawrence Sromovsky, University of Wisconsin-Madison/ W. M. Keck Observatory/NASA