Ptolemaeus                                Earth-based telescopic image                                  Apollo 16 image .

Larger, uncropped, version of above by Legault

Full-sized version of Apollo 16 image above  AS16-0989

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Brief

A large wall plain with considerably eroded polygonal wall. It is 153-km in diameter and has an average depth of 2400 m. What appears to be a flat floor is covered with numerous craterlets and crater pits and is rippled by shallow circular depressions which are visible only under low illumination.

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Other Lunar Orbiter images

http://cass.jsc.nasa.gov/research/lunar_orbiter/img/4-108H3.jpg  http://cass.jsc.nasa.gov/research/lunar_orbiter/img/4-108H2.jpg  http://cass.jsc.nasa.gov/research/lunar_orbiter/img/4-101H3.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: Section 44  Clickable Sections Map

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