Cauchy Fault

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Cauchy Fault / Fossa Casals

(informal names; IAU name: Rupes Cauchy)

Lat: 9.0°N, Long: 37.0°E, Length: 120 km, Height: 342 m, Rükl: 36

external image normal_cauchy_area_2006.10.11.jpg
Oliver Pettenpaul Cauchy is the bright circular crater a little above center. Rupes Cauchy is the bright line below it. The parallel groove above Cauchy is Rima Cauchy.


LPOD Photo Gallery Lunar Orbiter Images Apollo Images ASU Apollo Image Archive
Apollo 15 high Sun

  • AS08-13-2344 is perhaps the most well-known and most frequently reproduced orbital Hasselblad of Cauchy and the nearby Rima Cauchy and Rupes Cauchy. This extraordinary photograph was included on pages 616-617 of the article "A Most Fantastic Voyage" by Lt. Gen. Sam C. Phillips (The Story of Apollo 8's Rendez-Vous with the Moon; National Geographic, May 1969). Research: Danny Caes
  • Apollo 17's orbital panoramic ITEK-camera frames AS17-P-2994, 2996, and 2998 have wrong captions, because in these three frames it (Rupes Cauchy) is called "RILLE".- DannyCaes Jul 1, 2012


(LAC zone 61A3) LAC map Geologic map LTO map


Description: Wikipedia

Rupes Cauchy

Additional Information

According to Wöhler and colleagues the maximum height of the scarp is 343 m and the steepest slope is 12°.


  • Named after nearby crater. (Cauchy)
  • Augustin Louis Cauchy (August 21, 1789 – May 23, 1857) was a French mathematician. He started the project of formulating and proving the theorems of calculus in a rigorous manner and was thus an early pioneer of analysis.
  • Called Fossa Casals on Lunar Topographic Orthophotomap 61-A3.

LPOD Articles



Christian Wöhler, Raffaello Lena, Maria Teresa Bregante, Paolo Lazzarotti, Jim Phillips. Vertical Studies about Rupes Cauchy. Selenology 25, no. 1, pp. 7-12, 2006.