Fredholm

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Fredholm

(formerly Macrobius D)

Lat: 18.4°N, Long: 46.5°E, Diam: 14 km, Depth: 2.56 km, Rükl: 26

external image normal_Fredholm_LO-IV-191H_LTVT.JPG
LO-IV-191H

Images

LPOD Photo Gallery Lunar Orbiter Images Apollo Images
Fredholm was also captured on Apollo 15's orbital ITEK-panoramic frame AS15-P-9249.
Research: Danny Caes


Fredholm's bright "dome"

The somewhat bulbous looking hill or "dome" to the north of Fredholm (between Macrobius and Proclus) looks deceptively "bright" and "cloudy" on pre-sunset photographs of Mare Crisium's western part, see Howard Eskildsen's LPOD May 2nd, 2013 and Alex Sanz's LPOD August 28th, 2013.
Detection of Fredholm's "bright cloudy dome": Danny Caes (is this a phenomenon which could be observed during each lunation, always before local sunset?).

Maps

(LAC zone 43C3) LAC map Geologic map LTO map

Description


Description: Wikipedia

Fredholm

Additional Information

  • Depth data from Kurt Fisher database
    • Westfall, 2000: 2.56 km
  • The peak on the west rim is 2750 m above the floor. - Jim Mosher


Nomenclature

  • Erik Ivar; Swedish mathematician (1866-1927).
  • This replacement name for a formerly lettered crater was introduced on LTO-43C3. - Jim Mosher


LPOD Articles


Bibliography