Apr. 17, 2012 - This mosaic of the four highest -resolution images of Ariel represents the most detailed Voyager 2 picture of this satellite of Uranus. The images were taken through the clear filter of Voyager's narrow -angle camera on Jan, 1986, at a distance of about 130,000 kilometers (80,000 miles). Ariel about 1,200 km (750 mi) in diameter, the resolution here is 2.4 km (1.5 mi). Much of Ariel;'s surface is densely pitted with craters 5 to 10 km (3 to 6 mi) across. These craters are close to the threshold of detection in this picture - Stock Image