Mare Nectaris [SEP] located on astronomical body
Mare Nectaris
Mare Nectaris ("Sea of Nectar") is a small lunar mare or sea (a volcanic lava plain noticeably darker than the rest of the Moon's surface) located south of Mare Tranquillitatis southwest of Mare Fecunditatis, on the near side of the moon. Montes Pyrenaeus borders the mare to the east and Sinus Asperitatis fuses to its northwestern edge. It is 84,000 square kilometers in size.
Several large craters are situated at the borders of Mare Nectaris. The biggest one is lava-filled Fracastorius (
124 km), which fuses with southern coast of the Sea. A prominent trio of 100-km craters Theophilus, Cyrillus and Catharina is located near northwestern coast. Other notable feature is a "ghost crater" Daguerre, almost entirely covered with lava, in the northern part of Mare Nectaris.
Mare Nectaris is located in the central part of 860-km-diameter impact basin, which was formed 3.8–3.9 billions year ago. This event marks the beginning of Nectarian period of the lunar geologic timescale. The best-preserved part of