The rim of Doppler has a somewhat polygonal form, and a smaller crater is joined with the inner side of the northeast wall. The interior of Doppler is rough and irregular, with some terracing of the worn outer walls, and a complex of central hills to the north of the midpoint. The crater Doppler B lies within the northern rim, and occupies a portion of the northern floor. A small, crater-formed valley runs to the southeast across the floor of Doppler from the rim of Doppler B.
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 Doppler.
Doppler
Latitude
Longitude
Diameter
B
11.8° S
159.4° W
37 km
M
15.4° S
160.0° W
25 km
N
16.9° S
160.5° E
17 km
W
11.0° S
161.7° W
15 km
X
10.3° S
161.3° W
18 km
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.