Langmuir crater ( lat. Langmuir ) - a large ancient impact crater in the southern hemisphere of the far side of the moon . The name was given in honor of the American chemist Irving Langmuir (1881-1957) and approved by the International Astronomical Union in 1970. The formation of the crater belongs to the Nectar period [1] .
| Langmuir | |
|---|---|
| lat Langmuir | |
 Snapshot of the Lunar Reconnaissance Orbiter probe. | |
| Specifications | |
| Diameter | 91.5 km |
| Deepest | 2830 m |
| Title | |
| Eponym | Irving Langmuir (1881–1957) - American chemist, Nobel Prize in Chemistry in 1932. |
| Location | |
| Heavenly body | Moon |
Content
Crater Description
The nearest neighbors of the crater are Chebyshev crater adjoining the north-west; Crater Brower adjoining in the east and Crater Buffon in the south-west [2] . The selenographic coordinates of the center of the crater are , diameter 91.5 km [3] , depth 2.8 km [1] .
Langmuir crater has a polygonal shape and moderately destroyed. The shaft has retained a fairly clear outline, overlapped by many small craters, in the northwestern and southwestern parts, covered by perceptible craters. The inner slope is much wider in the southeastern part than the rest of the perimeter, in this part it has a terrace-like structure. The height of the shaft above the surrounding terrain reaches 1430 m [1] , the volume of the crater is approximately 8000 km ³ [1] . The bottom of the bowl is relatively even in the western part and crossed in the eastern. A little northeast of the center of the bowl there is a massive crescent shaped central peak consisting of anorthosite (A), gabbro – norite – troctolite anorthosite with plagioclase content of 85–90% (GNTA1); gabbro-norito-troctolitic anorthosite with plagioclase content of 80-85% (GNTA2) and anorthosite gabbro-norite (AGN) [4] .
Satellite craters
None.
See also
- List of craters on the moon
- Moon crater
- Morphological catalog of craters of the moon
- Planetary Nomenclature
- Selenography
- Mineralogy of the Moon
- Geology of the Moon
- Late heavy bombardment
Notes
- ↑ 1 2 3 4 Lunar Impact Crater Database . Losiak A., Kohout T., O'Sulllivan K., Thaisen K., Weider S. (Lunar and Planetary Institute, Lunar Exploration Intern Program, 2009); updated by Öhman T. in 2011. Archived page .
- ↑ Langmuir Crater on LAC-122 map
- ↑ Directory of the International Astronomical Union
- ↑ Stefanie Tompkins and Carle M. Pieters (1999) Minerallogy of the lunar crust: Results from Clementine Meteoritics & Planetary Science, vol. 34, pp. 25-41.