Stadius
                            Earth-based telescopic image                                Lunar Orbiter image
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Flooded  crater, Stadius, right of center. (Image by Legault) 
Larger version of above, but rotated 180
Full-sized version of LO4 image
LO4-121H2
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Brief
An interesting group of craters north-north-west of the flooded crater Stadius and reaching as far as the edge of Mare Imbrium, where it continues in the form of a rille composed of crater pits. They are obviously secondary formations related to the origin of nearby Copernicus (See LO4-121H2 below). The crater at upper right is Eratosthenes. The large crater is Copernicus. 
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Other Lunar Orbiter images
 http://www.lpi.usra.edu/research/lunar_orbiter/img/4-114H2.jpg
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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:
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This web page was created by Francis Ridge for The Lunascan Project:
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