Langemak is a prominent

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 is located less than one crater diameter west-northwest of Danjon, and nearly due east of Meitner. To the southwest of Langemak is Kondratyuk. Langemak partly overlies the larger and older crater Langemak N. This feature is also attached to the northeastern rim of Kondratyuk. To the northeast of Langemak is the crater Necho, an impact feature that lies at the locus of a bright

ray system A ray system comprises radial streaks of fine '' ejecta'' thrown out during the formation of an impact crater, looking somewhat like many thin spokes coming from the hub of a wheel. The rays may extend for lengths up to several times the diameter ...

. Ray material from this impact lies across the rim and interior of Langemak, particularly along the northwest and eastern halves. The outer rim of Langemak is relatively fresh and well-defined. The most notable impact along the rim is the small crater

Sherrington Sherrington is a small village and civil parish on the River Wylye in Wiltshire, England. The part of the Great Ridge Wood known as Snailcreep Hanging lies entirely within Sherrington. Location Sherrington is near the larger village of Codfor ...

along the southwestern edge. The remainder of the rim is roughly circular, but irregular with multiple small outward bulges. The inner wall is

terrace Terrace may refer to: Landforms and construction * Fluvial terrace, a natural, flat surface that borders and lies above the floodplain of a stream or river * Terrace, a street suffix * Terrace, the portion of a lot between the public sidewalk a ...

d in places, with the appearance of slumping along parts of the upper edge. Within the interior is a low, curving central ridge near the midpoint. There is a patch of lower

albedo Albedo (; ) is the measure of the diffuse reflection of sunlight, solar radiation out of the total solar radiation and measured on a scale from 0, corresponding to a black body that absorbs all incident radiation, to 1, corresponding to a body ...

material to the southwest of this ridge, extending to the edge of the 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, Langemak was called ''Crater 279''.Lunar Farside Chart (LFC-1A)
2nd Edition October 1967 Langemak N, to the south of Langemak, was called ''Crater 280''. The crater is named in honor of

Georgy Langemak Georgy Erikhovich Langemak (russian: Георгий Эрихович Лангемак; – 11 January 1938) was a Soviet engineer in the Soviet space program, working on rocket design applications. He is chiefly remembered for being the co ...

, a

Soviet space program The Soviet space program (russian: Космическая программа СССР, Kosmicheskaya programma SSSR) was the national space program of the former Union of Soviet Socialist Republics (USSR), active from 1955 until the dissoluti ...

engineer executed during the

Great Purge The Great Purge or the Great Terror (russian: Большой террор), also known as the Year of '37 (russian: 37-й год, translit=Tridtsat sedmoi god, label=none) and the Yezhovshchina ('period of Nikolay Yezhov, Yezhov'), was General ...

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 Langemak.

References

* * * * * * * * * * * * {{cite book , first = Peter T. , last = Wlasuk , date = 2000 , title = Observing the Moon , publisher = Springer , isbn = 978-1-85233-193-1 Impact craters on the Moon