Umbriel
The southern hemisphere of Umbriel displays heavy cratering in this Voyager 2 image from a distance of 557,000 kilometers (346,000 miles). This frame, taken through the clear-filter of Voyager's narrow-angle camera, is the most detailed image of Umbriel, with a resolution of about 10 km (6 mi). Umbriel is the darkest of Uranus' larger moons and the one that appears to have experienced the lowest level of geological activity.
Credit: NASA/JPL
Image Number: PIA00040
Date: January 24, 1986
Umbriel
The southern hemisphere of Umbriel displays heavy cratering in this Voyager 2 image from a distance of 557,000 kilometers (346,000 miles). This frame, taken through the clear-filter of Voyager's narrow-angle camera, is the most detailed image of Umbriel, with a resolution of about 10 km (6 mi). Umbriel is the darkest of Uranus' larger moons and the one that appears to have experienced the lowest level of geological activity.
Credit: NASA/JPL
Image Number: PIA00040
Date: January 24, 1986