Danjon (crater)

Danjon
Oblique Apollo 17 Mapping Camera image of Danjon crater (larger) and D'Arsonval crater (below center), facing south
Coordinates11°25′S 123°54′E / 11.42°S 123.90°E / -11.42; 123.90
Diameter69.3 km (43.1 mi)[1]
Depth4.7 km (2.9 mi)[2][3]
Colongitude237° at sunrise
EponymAndré Danjon
Oblique view facing east-northeast, from Apollo 8

Danjon is a lunar impact crater on the far side of the Moon.[4] It lies less than a crater diameter to the east-southeast of the larger crater Langemak. To the east-northeast of Danjon is the crater Perepelkin, and due south lies the walled plain called Fermi.[5]

The northeastern rim of Danjon is overlain by the smaller crater D'Arsonval.[5] Danjon overlies the southeastern corner of the slightly smaller satellite crater Danjon X. The outer rim of Danjon is worn and eroded, particularly at the southern end, and the interior floor is irregular and marked by several small craterlets.[6]: 83 

The crater was named after French astronomer André Danjon (1890–1967).[7] Its designation was formally adopted by the IAU in 1970.[1]

Satellite craters

By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint closest to Danjon.[8]

Danjon[6]: 296  Latitude Longitude Diameter
J 12.8° S 125.6° E 23 km
K 13.8° S 125.1° E 17 km
M 13.9° S 124.1° E 12 km
X 10.0° S 122.8° E 65 km

References

  1. 1 2 "Danjon". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program. Retrieved 2026-07-24.
  2. ↑ "LTO-83C4 Delporte". Lunar Topographic Orthophotomap (LTO) Series. Defense Mapping Agency. Retrieved 2026-05-15. Scale: 1:250,000.
  3. ↑ "LTO-83C1 Danjon". Lunar Topographic Orthophotomap (LTO) Series. Defense Mapping Agency. Retrieved 2026-05-15. Scale: 1:250,000.
  4. ↑ Moore, Patrick (2000). The Data Book of Astronomy. CRC Press. p. 67. ISBN 978-1-4200-3344-1.
  5. 1 2 Byrne, Charles J. (2008). The Far Side of the Moon. Springer. pp. 20, 25–26. ISBN 978-1-4899-8806-5.
  6. 1 2 Bussey, B.; Spudis, P. (2004). The Clementine Atlas of the Moon. New York: Cambridge University Press. ISBN 978-0-521-81528-4.
  7. ↑ Menzel, D. H.; et al. (1971). "Report on Lunar Nomenclature by the Working Group of Commission 17 of the IAU". Space Science Reviews. 12 (2): 136–186. Bibcode:1971SSRv...12..136M. doi:10.1007/BF00171763. S2CID 122125855.
  8. ↑ Grego, P. (2015). "Satellite Crater". In Hargitai, H.; Kereszturi, Á. (eds.). Encyclopedia of Planetary Landforms. New York, NY: Springer. doi:10.1007/978-1-4614-3134-3_328.

Sources

  • Price, Fred W. (1988). The Moon Observer's Handbook. Cambridge University Press. ISBN 978-0-521-33500-3.
  • Rükl, Antonín (1990). Atlas of the Moon. Kalmbach Books. ISBN 978-0-913135-17-4.
  • Wlasuk, Peter T. (2000). Observing the Moon. Springer. ISBN 978-1-85233-193-1.
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