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Lat: 28.04°N, Long: 33.81°W, Diam: 1.26 km, Depth: 0.141 km,Rükl: 19

external image normal_Walter_LO-IV-138H_LTVT.JPG


Left: LO-IV-138H The white arrows point to Walter. The shadowed area in the lower left is the northeast part of Diophantus.
Right: LROC NAC image - M183754268RE (annotated and normal views – note: original NAC image is inverted in link)


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(LAC zone 39B3) LAC map Geologic map LM map LTO map Topophotomap


A shallow, irregularly-shaped depression that has received a name only by virtue of its having been labeled on a Topophotomap, and the subsequent adoption of the names on those maps by the IAU. The fact that the same name was formerly used to designate a much larger and more famous crater in the Moon's southern hemisphere (now known as Walther) has led to much confusion. - Jim Mosher



Additional Information

  • IAU page: Walter
  • According to NASA RP-1097, "Walter" is a Minor Feature whose name was originally intended only for use in connection with Topophotomap 39B2/S1(on which it is plotted). However, the use of this name, and many of the other names on the Topophotomaps was approved by the IAU in 1979, giving the Moon two "Walter"s.
  • In comparison to the current official IAU data listed in the title line, the position and dimensions in the older coordinate system of the topophotomap as read by LTVT were: Lat: 28.027°N, Long: 33.824°W, Diam: 1.5 km. The depth listed in the title line was read from the highest point on the rim to the lowest point on the floor. On the topophotomap, that deepest point is indicated as falling at 28.033N/33.828W.
  • The other Minor Features labeled on Topophotomap 39B2/S1 are Samir, Louise and Isabel.
    - Jim Mosher


  • German male name. Taken from a list of possible names for minor features published in the Transactions of the IAU for 1976.
  • This feature should not be confused with the much larger and more famous crater Walther. That crater was known as "Walter" until 2000, when the IAU decided to revise its spelling, presumably to avoid confusion with the present minor feature. - Jim Mosher

LPOD Articles


Named Features -- Prev: Wallach -- Next: Walther