Kramers (crater)

Kramers
Clementine mosaic
Coordinates53°17′N 127°59′W / 53.28°N 127.98°W / 53.28; -127.98
Diameter61.59 km (38.27 mi)
DepthUnknown
EponymHendrik A. Kramers
Oblique Lunar Orbiter 5 image of Kramers (left) and Kramers C (right), facing west

Kramers is an old lunar impact crater that is located on the northern hemisphere on the far side of the Moon.[1] It lies some distance to the west of the larger crater Coulomb, and to the northwest of the smaller Weber, and it was named after Hendrik Anthony Kramers, a Dutch physicist, in 1970.[2][3]

The outer rim of Kramers is heavily eroded and worn, although the perimeter of the original crater can be readily discerned. The younger, but comparably sized formation Kramers C intrudes into the northeast rim, and the two form a crater pair. The later crater has a terraced inner wall and a central peak at the midpoint.

Kramers lies within the Coulomb-Sarton Basin, a 530 km wide impact crater of Pre-Nectarian age.

Satellite craters

By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Kramers.[4]

Kramers Latitude Longitude Diameter
C 55.0° N 125.6° W 59.64 km
M 50.4° N 126.9° W 31.90 km
S 52.8° N 132.2° W 26.53 km
U 54.2° N 132.4° W 38.58 km

References

  1. ↑ Moore, Patrick (2000). The Data Book of Astronomy. CRC Press. p. 69. ISBN 978-1-4200-3344-1.
  2. ↑ "Kramers". We Name The Stars. Retrieved 2024-03-18.
  3. ↑ Kramers, Gazetteer of Planetary Nomenclature. IAU/USGS/NASA.
  4. ↑ Grego, P. (2015). "Satellite Crater". In Hargitai, H.; Kereszturi, Á. (eds.). Encyclopedia of Planetary Landforms. New York, NY: Springer. doi:10.1007/978-1-4614-3134-3_328.

Sources