Mersenius
                            Earth-based telescopic image                    Cropped Lunar Orbiter image
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Image above by ESO 
Full sized  version of Lunar Orbiter
 LO4-149H1
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Brief
This is a cropped  ESO image showing the 84-km flooded crater, Mersenius in Section 51, which lies in the  SW corner of the Moon. The image above is similar to another image, one of Macrobius near Mare Crisium, but this time the "sea" at the right is actually Mare Humorum. The Lunar Orbiter image, as usual, has great detail.
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Other Lunar Orbiter images
 None
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For the latest information and images regarding this section, including Apollo Hasselblad (H), Metric (M), and Panoramic (P) images, go to:
Section 51 
 Clickable Sections Map
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This web page was created by Francis Ridge for The Lunascan Project:
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