(formerly Römer K)
Lat: 22.58°N, Long: 35.56°E, Diam: 11.91 km, Depth: 2.6 km, Rükl: 25
LOIV-073-H3 Franck is the circular crater to the lower right of center. The smaller circular crater in the upper left is Brewster. The still smaller craters are not named, but the large enclosures partially visible along the top margin are Römer R (upper left) and Römer T (upper right). Franck and Brewster are themselves in Sinus Amoris.
- Vertical views of Franck and the system of bright "spokes" on its inner slopes were captured on Apollo 15's orbital ITEK-panoramic frames AS15-P-9278 and AS15-P-9283 (scroll toward the central parts of both frames).
- Research: Danny Caes
This is a simple crater with steep walls and a tiny flat floor. It is totally undeserving of a name! - tychocrater Sep 29, 2007
- IAU page: Franck
- Depth data from Kurt Fisher database
- Westfall, 2000: 2.6 km
- Viscardy, 1985: 2.51 km
- Included on the ALPO list of banded craters
- Named for James Franck (August 26, 1882 – May 21, 1964), a German-born physicist and Nobel laureate. In 1925, Franck received the Nobel Prize in Physics, mostly for his work in 1912-1914 which included the Franck-Hertz experiment, an important confirmation of the Bohr model of the atom.
- This replacement name for a formerly lettered crater was introduced on LTO-43D2 (May, 1974 -- for which it served as the chart title). It appears in the cumulative list of approved names in IAU Transactions XVB (1973), and was approved probably approved in that year. Biographical information was unofficially reported in Ashbrook, 1974. - JimMosher