Ashbrook is a large
lunarimpact crater that is located in the vicinity of the south pole on the
far side of the
Moon, and so cannot be viewed directly from the
Earth. The eastern face of the crater has been overlain by the similar-sized
Drygalski, and more than half the interior floor of Ashbrook is covered by the outer
ramparts and ejecta of Drygalski. To the northwest is the walled plain
Zeeman.
The surviving outer rim of Ashbrook is worn and eroded by subsequent impacts, although much of the original formation is still visible. If the crater once possessed a central peak, it is now buried by the ejecta from Drygalski. Only a section of the interior floor near the southwest rim is flat, being marked only by tiny craterlets.
This crater was previously designated Drygalski Q before being assigned a name by the
IAU.
References
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.