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Lat: 53.9°N, Long: 84.4°W, Diam: 123 km, Depth: 3.0 km, Rükl: 1, pre-Nectarian

external image normal_Volta-Repsold_LO-IV-188M_LTVT.JPG
LO-IV-188M The IAU-approved feature names in this medium resolution Lunar Orbiter view include: Volta, Repsold, Regnault, Stokes, Langley, Galvani, and Rimae Repsold.
LRO images. Regnault, cutting Volta's western rim, has a Pac-Man shadow.


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(LAC zone 21C2) USGS Digital Atlas PDF


Large, smooth-floored crater crossed by numerous rilles. The fact that the entire floor is domed up 275 m implies that rilles may be expansion cracks generated by doming. Amazingly, the floor of Regnault is part of the broad domed area of Volta - both craters are domed.
Why do many of the craters west of Oceanus Procellarum have rilled-floors? This is probably the largest area of rilles on the Moon.

Description: Wikipedia


Additional Information

Depth data from Kurt Fisher database
  • Westfall, 2000: 3.58 km

From LRO altimetry, depth varies from 2.7 to about 3,2 km, and central peak height 590 m. (CAW)
Entire floor domed up about 275 m (CAW)


  • Count Allessandro Guiseppe Antonio Anastasio Volta; Italian physicist (1745-1827).
  • Name originally proposed by Schmidt but not in Named Lunar Formations; shifted to a different crater in Rectified Lunar Atlas (1963) and approved by IAU in 1964 (Whitaker, 1999, pp. 224 and 235).
  • Rimae Volta (an unofficial name from D.Caes for the system of rilles on the floor of Volta).

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