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Lorentz Basin - with Nernst and Rontgen on its floor

(unofficial name; IAU crater name: Lorentz, 312 km diam)

Lat: 32.6°N, Long: 95.3°W, Main ring diam: 365 km, Basin depth: 4.45 km, Rükl: (farside)

Lorentz.jpgexternal image normal_Lorentz_Basin_LIDAR_LTVT.JPG
Upper image: LROC . The double ring structure is preserved only on western half of the basin; eastern sector dominated by the presence of Nernst and Röntgen craters, plus Laue on top of S rim.
Lower image: Clementine, Clementine LIDAR Altimeter texture from PDS Map-a-Planet remapped to north-up aerial view by LTVT. The dot is the center position and the white circle the main ring position from Chuck Wood's Impact Basin Database. Grid spacing = 10 degrees.


LPOD Photo Gallery Lunar Orbiter Images

Four Lunar Orbiter IV photographs of the Lorentz-Nernst-Rontgen group, made just after local sunrise:

  • LO-IV-182-med, in which the Lorentz-Nernst-Rontgen group was captured at the upper half of the frame. The largest part of Lorentz is still in darkness. Craters Nernst and Rontgen are easily detectable (note the small central peak on the floor of Rontgen).
  • LO-IV-187-med, in which the group was captured very near the frame's upper margin.
  • LO-IV-188-med, in which the group was captured at the upper half of the frame (this is the best frame of the four).
  • LO-IV-190-med, in which the group was captured at the lower-left section of the frame.
  • Research Danny Caes


(LAC zone 36C4) USGS Digital Atlas PDF

Basin Classification

(description of terms and most numeric basin data from Wood, C.A. (2004) Impact Basin Database)
Certainty of Existence
Wilhelms Age Group
Ring Diameters
Mare Thickness
170, 365 km
0.9 km
No; -33 mGal gravity anomaly


Description: Wikipedia


Additional Information


The IAU crater name honors Hendrik Antoon Lorentz (1853-1928), a Dutch physicist and Nobel laureate.
  • The impact basin is named after the crater.

LPOD Articles


Lorentz in the Sourcebook Project (William R. Corliss)

- In Mysterious Universe, a handbook of astronomical anomalies (1979) :
  • Page 660: Motion of the Earth through the Ether (Science, 1925).