Aurorae Sinus

Aurorae Sinus is a dark feature in the southern hemisphere of the planet Mars. Together with albedo features contributed by Aonius Sinus and Solis Lacus, it is part of a feature known as the "eye of Mars". A albedo feature is an area which shows a contrast in brightness or darkness (albedo) with adjacent areas.^[1]

The "eye of Mars"

References

1. "Aurorae Sinus". We Name The Stars. Retrieved 2022-06-27.