Lacus Aestatis [SEP] located on astronomical body
Lacus Aestatis
Lacus Aestatis (Latin for "Summer Lake") consists of two relatively small areas of lunar mare located near the western limb of the Moon. The selenographic coordinates of this feature are 15.0° S, 69.0° W, and it lies within a diameter of 90 km. The lake has a combined surface area in the order of 1,000 km.
The northwestern part of this feature is located to the east-southeast of the crater Rocca, and is contained within the rim of the satellite
States. The name for the whole system of canyons is Valles Marineris. Starting at the west with Noctis Labyrinthus in the Phoenicis Lacus quadrangle, the canyon system ends in the Margaritifer Sinus quadrangle with Capri Chasma and Eos Chasma (in the south). The word Chasma has been designated by the International Astronomical Union to refer to an elongate, steep-sided depression. Valles Marineris was discovered by and named for the Mariner 9 mission. Moving east from Noctis Labyrinthus, the canyon splits into two troughs, Tithonium Chasma and Ius