Voyager 2's Umbriel image catalog
Filed under pretty pictures, amateur image processing, Uranus' moons, Voyager 1 and 2
At 1,169 kilometers in diameter Umbriel is nearly identical in size to Ariel but looks surprisingly different. Its surface is much darker and lacks the flat-floored fractures that seam Ariel. A single bright-rimmed crater, named Wunda, appears near the terminator. Umbriel was on the opposite side of Uranus from Voyager 2 during the encounter, so the best images are still rather low resolution.
NASA / JPL / PDS Rings Node / montage by Emily Lakdawalla
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Original image data dated on or about January 24, 1986