Memphis Facula [SEP] located on astronomical body
Memphis Facula
Memphis Facula is a palimpsest, or "ghost crater", on Ganymede, the largest of the Jovian satellites.
About 360 km across, it is situated in the south western part of Galileo Regio, a huge almost circular dark region on Ganymede's north eastern flank. Although almost level today, it is a relic of a massive impact and once was a deep impact crater whose walls have slumped and its floor has risen isostatically, smoothing out the remaining topography with slush.
The morphology of
Spot 5.
The brightest cluster of spots ("Spot 5") is located in an crater called Occator, which is located at 19.86° N latitude; 238.85 E longitude.
The spot in the center of the crater is named "Cerealia Facula", and the group of spots to the east - "Vinalia Faculae". These names were approved by International Astronomical Union 26 November 2016.
Alan Duffy of Swinburne University suggested "a meteorite strike either shook covering material off the salty ice or heated it