Engel'gardt (Engelhardt)

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Engel'gardt (Engelhardt)

(current IAU name; originally Engelhardt)
Lat: 5.7°N, Long: 159.0°W, Diam: 43 km, Depth: km, Rükl: (farside)

external image normal_Engelgardt_LO-V-030H_LTVT.jpg

external image normal_engelgardt-large.jpg


Left: Lunar Orbiter V-030H Engel'gardt is in the center with a part of Engel'gardt B visible in the upper right. The highest point on the Moon detected by the Kaguya laser altimeter is on the rim between the two. Middle: Clementine. Right: Color-coded topography LAC 69 image from USGS Digital Atlas.


LPOD Photo Gallery Lunar Orbiter Images Apollo Images

  • Engel'gardt is also visible near the right margin of frame AS11-42-6274.
  • Additional research Apollo 11 orbital photography: Danny Caes


(LAC zone 69C1) USGS Digital Atlas PDF



Engel'gardt (Engelhardt)

Additional Information


  • Named for Vasilij Pavlovich Engel'gardt (1828-1915), a Russian astronomer.
  • Engelhardt was in the list of IAU-approved farside names published in Menzel, 1971. The biographical information, supplied there by Prof. B. Levin, describes the honoree as a "Russian amateur astronomer [who] made numerous observations of comets, asteroids, nebulae, and star clusters from his private observatory in Dresden." Baron von Engelhardt (as he was known in Germany) published at least one book describing his astronomical observations.
  • The IAU approved spelling was changed to Engel'gardt at some unknown later date. As with several other names of this sort, since the change was not documented it is unclear if the old spelling in parenthesis is regarded as part of the current official IAU name, or not.
  • According to this map (1969) of the Sternberg Institute, there should be a crater east-northeast of Engel'gardt for which the name Wheatstone was proposed (lunar formation N° 747 in the accompanying nomenclature gazetteer). Slightly north of the above mentioned Wheatstone, there should be a crater for which the name Perevoshchikov was suggested (N° 587 on the same map). Neither of these names was adopted by the IAU. Research: Danny Caes

Lettered Craters

Excerpt from the USGS Digital Atlas of the Moon.

LPOD Articles

LRO Articles

Highest Point on the Moon!.


  • An Obituary notice for "B. P. Engelhardt" appears in JBAA, vol. 26, p. 39 (1915).
    • According to the curator of the above-referenced site, noted astronomical historian Wolfgang Dick, "Basilius von Engelhardt" would be the German form of the Russian name "Vasily [or Vasilij] Engelgardt" which might explain the initials "B. P." Prof. Dick reports that Engelhardt was born in Russia and died Dresden and believes his ancestors were of German, rather than Russian, origin.

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