McDonald

McDonald (aka Porthouse)

(formerly Carlini B)

Lat: 30.4°N, Long: 20.9°W, Diam: 7 km, Depth: 1.6 km, Rükl: 10

LO_IV-127H

Images

LPOD Photo Gallery Lunar Orbiter Images Apollo Images
Strange as it is, there seems to be nothing in the Apollo Image Atlas for Carlini B (McDonald). I guess there might be a number of orbital Apollo photographs which show this crater! - DannyCaes May 10, 2012
McDonald was captured on 5 frames of Apollo 15's oblique north looking mapping/metric Fairchild-camera magazine REV-35.
Of these 5 Fairchild frames, AS15-M-1553 shows McDonald below and to the right of the frame's centre.
McDonald was also captured on 3 oblong frames of Apollo 15's panoramic Itek-camera magazine REV-72:
Stereo-pair frames AS15-P-10256 and AS15-P-10261 show McDonald near the right margins of both frames. Note the small crater in the centre of McDonald's floor!
AS15-P-10254 shows McDonald and its small central craterlet near the frame's upper right corner.
Research orbital Apollo 15 photography: Danny Caes

Maps

(LAC zone 40A2) LAC map Geologic map LTO map

Description

Description: Wikipedia

McDonald

Additional Information

Depth data from Kurt Fisher database
 

• Westfall, 2000: 1.6 km

Nomenclature

• This replacement name for a formerly lettered crater was introduced on LTO-40A2 (for which it served as the chart title). - Jim Mosher
• Once called Porthouse by H.P.Wilkins.
• The name McDonald currently honors two men:
  • William Johnson McDonald(1844-1926), American benefactor.
    • William was a Texas banker who, at his death, unexpectedly left an endowment for construction of large astronomical telescope (the McDonald Observatory) by the University of Texas. The IAU approved using the name "McDonald" as a tribute to William in 1976, so he is the original honoree.
  • Thomas Logie MacDonald(1901-1973), Scottish selenographer.
    • Thomas was a Scottish politician who served as secretary and chairman of the West of Scotland branch of the British Astronomical Association. MacDonald also served as Director of the Lunar Section of the BAA from 1937-1945, and was particularly noted for a series of "Studies in Lunar Statistics" published in the associations Journal between 1929-1940. In these he organized craters into four morphological classes, and established new relationships for predicting depth and rim height as a function of diameter (Both, 1961, p. 33). In 1985 the IAU added him as a second honoree under the name "Thomas L. MCDONALD", but it appears he actually spelled his name "MacDonald".
  • Although controversial, it might be interesting to add the name James Edward McDonald (1920-1971), American physicist.

LPOD Articles

Bibliography

• MacDonald, T. L. 1942. The Depression of Lunar Craters, Journal of the Royal Astronomical Society of Canada, Vol. 36, p.159.

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