Mare Humorum [SEP] located on astronomical body
smaller Puiseux. To the east are Hippalus crater and Promontorium Kelvin. To the west are the Rimae Doppelmayer and the Rupes Liebig, which are cliffs near Liebig itself which is just west of the mare.
Names.
Like most of the other maria on the Moon, Mare Humorum was named by Giovanni Riccioli, whose 1651 nomenclature system has become standardized. Previously, the 17th century astronomer Pierre Gassendi had named it Anticaspia ('opposite to the Caspian', referring to Mare Crisium, which he had named after the
Mare Humorum
Mare Humorum (the "Sea of Moisture") is a lunar mare. The impact basin it is located in is 425 kilometers across.
Geology.
It was not sampled by the Apollo program, so a precise age has not been determined. However, geological mapping indicates that it is intermediate in age between the Imbrium and Nectaris Basins, suggesting an age of about 3.9 billion years. Humorum Basin is filled with a thick layer of mare basalt, believed to exceed 3 kilometers in thickness at the