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 Humboldtianum is the smooth dark patch. The upper right is occupied by the walled plain Bel'kovich. Clementine image.
Oblique view from Apollo 16
Belʹkovich (crater)
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Belʹkovich is a large lunar impact crater of the form termed a walled plain. This crater dates to the Nectarian period of the lunar geologic timescale. The formation has been heavily eroded by a histo
Mare Humboldtianum
…centered at 56.9° N, 81.5° E, and its maximal size is 230 km. However the surrounding basin extends for a diameter of over 600 km. The walled plain named Bel'kovich spills over the northwestern portion of Mare Humboldtianum, and the flooded crater Bel'kovich A lies across the southwestern rim of Bel'kovich and part…
Oblique Lunar Orbiter 4 image
Full Moon 2010