Hamlet of Oberon . ... Credit Copyright: Astrogeology Team ( USGS ), The Voyager Project Explanation: What's in a name? ... Thus Oberon , king of the mid-summer night fairies, is also Uranus' most distant and second largest moon and Hamlet is a tragically large and princely crater on its surface . The above image represents known surface features of Oberon and was constructed by the U.S. Geological Survey (USGS) based on data from NASA's robot explorer Voyager 2 . ... NASA Official: Jay Norris. ...