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(current IAU name; formerly Paul Henry; and before that, part of Frères Henry)

Lat: 24.0°S, Long: 56.8°W, Diam: 41 km, Depth: 2.63 km, Rükl: 51

external image normal_Henry_LO-IV-156H_LTVT.JPG


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Description: Wikipedia


Additional Information

Depth data from Kurt Fisher database
  • Westfall, 2000: 2.63 km


  • Joseph Henry (December 17, 1797 – May 13, 1878) was a Scottish-American scientist who served as the first Secretary of the Smithsonian Institution. During his lifetime, he was considered one of the greatest American scientists since Benjamin Franklin. While building electromagnets, Henry discovered the electromagnetic phenomenon of self-inductance. He also discovered mutual inductance independently of Faraday, though Faraday was the first to publish his results. Henry's work on the electromagnetic relay was the basis of the electrical telegraph, jointly invented by Samuel Morse and Charles Wheatstone. The SI unit of inductance, the henry, is named after Joseph Henry.
  • This crater was formerly known in the IAU nomenclature as Paul Henry; and before that was one member of a pair known collectively as Frères Henry. When regarded as a pair, the Henry part of the name may have been more closely associated with the single crater now known as Henry Frères, which is different from the present crater. (see Henry Frères for further explanation). - Jim Mosher
  • Paul Henry Delta (elevation north of both the Henry craters) (see Chart 78 in the Times Atlas of the Moon).
  • Not to be confused with the NASA's craterlet Henry at the valley of Taurus-Littrow (the landing site of Apollo 17): Henry (Apollo 17 crater) - "Named for Prince Henry the Navigator (1394-1460), supporter of early Portuguese explorations along the African Coast, though not an explorer himself. With his name, we also honor the managers and supporters of modern exploration." Cernan and Schmitt drove by Henry during the first stage of their EVA-3 traverse (source: APOLLO LUNAR SURFACE JOURNAL, Eric M. Jones).

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A certain M.M. Henry is mentioned on page 97 of T.W.Webb's Celestial Objects for Common Telescopes, Volume 1; The Solar System (chapter THE MOON). Who was this M.M. Henry? (according to T.W.Webb this person seems to have observed the moon through a large telescope at Paris).
This must have been Messieurs Henry (MM. Henry).
Sometimes... while reading about the moon (in T.W.Webb's) one should think French...