De Morgan is a small lunarimpact crater that is located in the central region of the Moon, midway between the crater D'Arrest two crater diameters to the south, and Cayley to the north. Its diameter is 9.7 km. It is named after British logician Augustus De Morgan.[1]
This crater is circular and bowl-shaped, with a small interior floor at the midpoint between the conical, sloping inner wall.
References
^"De Morgan (crater)". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.
Andersson, L. E.; Whitaker, E. A. (1982). NASA Catalogue of Lunar Nomenclature. NASA RP-1097.
Menzel, D. H.; Minnaert, M.; Levin, B.; Dollfus, A.; Bell, B. (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. S2CID122125855.
Chuck Wood, Lunar Photo of the Day, How Deep is That Hole at the Wayback Machine (archived June 14, 2011) - includes a couple of craters such as De Morgan (sometimes as de Morgan)