Mare Smythii
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Mare Smythii is a lunar mare located along the equator on the easternmost edge of the Moon's near side, named for the 19th-century British astronomer William Henry Smyth. It is one of only two lunar m
Mare Smythii
View from Apollo 10
Oblique view from Apollo 16
Mare Humboldtianum
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Mare Humboldtianum is a lunar mare located just to the east of Mare Frigoris, in the center of Humboldtianum basin. It is located along the northeastern limb of the Moon, and continues on to the far s
Mare Smythii
…side, named for the 19th-century British astronomer William Henry Smyth. It is one of only two lunar maria that are named after people, the other being Mare Humboldtianum (named after German explorer Alexander von Humboldt). The Smythii basin where the mare is located is of the Pre-Nectarian epoch, while the surrounding…
Mare Humboldtianum is the smooth dark patch. The upper right is occupied by the walled plain Bel'kovich. Clementine image.
Oblique view from Apollo 16