Mare Tranquillitatis [SEP] located on astronomical body
Mare Tranquillitatis
Mare Tranquillitatis (Latin for Sea of Tranquillity or Sea of Tranquility; see spelling differences) is a lunar mare that sits within the Tranquillitatis basin on the Moon. The mare material within the basin consists of basalt formed in the intermediate to young age group of the Upper Imbrian epoch. The surrounding mountains are thought to be of the Lower Imbrian epoch, but the actual basin is probably Pre-Nectarian. The basin has irregular margins and lacks a defined multiple-ringed structure. The irregular topography in and near
Boot Hill (lunar mountain)
Boot Hill is a small lunar mountain that is located in Mare Tranquillitatis, about 45 km south of the crater Maskelyne, and about 210 km east of the Apollo 11 landing site. The peak at its north end rises approximately 230 m above the surrounding mare.
Unlike many other lunar features named by the Apollo astronauts, the name of the mountain is not formally recognized by the International Astronomical Union. However, Boot Hill and other informal features such as the nearby Duke Island