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(formerly Lichtenberg G)

Lat: 30.72°N, Long: 56.65°W, Diam: 4.34 km, Depth: km, Rükl: 8

external image normal_Montes%20Agricola%20AS15-M-2484.jpg
Apollo 15 image AS15-M-2484 HR, The crater in the extreme upper left is Humason (Lichtenberg G). Other IAU named features in this north-up view include the diagonal running Montes Agricola and adjacent Rima Agricola, Dorsa Whiston, Dorsum Niggli, and Mons Herodotus (near the lower edge).


LPOD Photo Gallery Lunar Orbiter Images Apollo Images (Lichtenberg G)
Apollo 15's orbital panoramic ITEK-camera frames AS15-P-10352 and 10357 show Humason (Lichtenberg G) at the right parts of both frames (scroll to the right).
Research: Danny Caes


(LAC zone 38B1) LAC map Geologic map LM map LTO map




Additional Information


  • Named for Milton Lasell Humason (August 19, 1891 – June 18, 1972), an American astronomer. He started out as a janitor at the Mount Wilson Observatory in 1917, but soon became night assistant. As a professional, he became known as a meticulous observer, obtaining photographs and spectrograms. His observations played a major role in the development of physical cosmology, including assisting Edwin Hubble in formulating Hubble's law. Much of the work Humason performed was actually credited to Hubble, the two of whom worked together for many years.
  • This replacement name for a formerly lettered crater was introduced on LTO-38B1 (March 1974, for which it served as the chart title). It appears in the cumulative list of approved names in IAU Transactions XVB (1973). Since it does not appear in any prior IAU Transactions, it was probably approved at the 1973 meeting. Biographical information was unofficially reported in Ashbrook, 1974. - Jim Mosher

LPOD Articles


By Milton L. Humason:
  • First Photographs of Planets and Moon Taken with Palomar's 200-inch Telescope, National Geographic, January 1953.

About Milton L. Humason:

  • Carl Sagan's COSMOS, pages 253-4, 256, 337.

Milton L. Humason in the Sourcebook Project (William R. Corliss)

- In Mysterious Universe, a handbook of astronomical anomalies (1979) :
(articles in which Humason is mentioned)
  • Page 612: Was there really a Big Bang? (G.Burbidge, Nature, 1971).
  • Page 622: On the Nature of Mass (F.Hoyle and J.V.Narlikar, Nature, 1971).

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