Papaleksi is an

impact crater An impact crater is a circular depression in the surface of a solid astronomical object formed by the hypervelocity impact of a smaller object. In contrast to volcanic craters, which result from explosion or internal collapse, impact craters ...

on the

far side ''The Far Side'' is a single-panel comic created by Gary Larson and syndicated by Chronicle Features and then Universal Press Syndicate, which ran from December 31, 1979, to January 1, 1995 (when Larson retired as a cartoonist). Its surrealis ...

of the

Moon The Moon is Earth's only natural satellite. It is the fifth largest satellite in the Solar System and the largest and most massive relative to its parent planet, with a diameter about one-quarter that of Earth (comparable to the width of ...

. It lies along the northeastern outskirts of the large crater Mandel'shtam. About 20 km to the north-northeast of Papaleksi is the similar crater Spencer Jones. This is a roughly circular crater with an eroded outer rim that has lost much of its original sharp definition. Much of the original structure of the rim and inner walls have been worn down, but only three small craters lie along the rim edge to the southwest. There is a central ridge near the midpoint with an impact at the east end, and a linear arrangement of small impacts to the south of this ridge. A small crater lies along the edge of the northern inner wall. Prior to formal naming by the

IAU The International Astronomical Union (IAU; french: link=yes, Union astronomique internationale, UAI) is a nongovernmental organisation with the objective of advancing astronomy in all aspects, including promoting astronomical research, outreach ...

in 1970, Papaleksi was called ''Crater 221''.Lunar Farside Chart (LFC-1A)
2nd Edition October 1967 It was named after Nikolai Papaleksi who worked closely with

Leonid Mandelstam Leonid Isaakovich Mandelstam or Mandelshtam ( be, Леанід Ісаакавіч Мандэльштам; rus, Леонид Исаакович Мандельштам, p=lʲɪɐˈnʲit ɨsɐˈakəvʲɪtɕ mənʲdʲɪlʲˈʂtam, a=Ru-Leonid_Mande ...

Satellite craters

By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Papaleksi.

References

* * * * * * * * * * * * {{refend Impact craters on the Moon