Borel is a tiny lunarimpact crater located in the southeast part of Mare Serenitatis. It was named after French mathematician Émile Borel.[1] To the northeast is the crater Le Monnier and to the southeast is the crater Abetti. Borel was previously identified as Le Monnier C.
This is a roughly circular, cup-shaped formation with inner floors that slope down to the midpoint of the crater. The interior has a higher albedo than the surrounding dark lunar mare.
References
^"Borel (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.