Angström (crater)
Crater on the Moon
From Wikipedia, the free encyclopedia
Ångström is a small lunar impact crater located on the border between Oceanus Procellarum to the west and Mare Imbrium to the east.[3] To the south is a formation of mountains rising out of the mare named the Montes Harbinger. To the east are some wrinkle ridges named the Dorsum Bucher and Dorsa Argand.[4]: 39
Apollo 15 image | |
| Coordinates | 29.9°N 41.6°W[1] |
|---|---|
| Diameter | 9.55 km (5.93 mi)[1] |
| Depth | 2.0 km (1.2 mi)[2] |
| Colongitude | 42° at sunrise |
| Eponym | Anders J. Ångström[1] |
This formation is bowl-shaped, with a circular rim and inner walls that slope down to the small central floor.[5] It has a higher albedo than the surrounding maria.[4]: 39 The crater halo is radar dark, indicating a lack of larger blocks among the fine ejecta.[6]
This crater is named after Anders Jonas Ångström (1814-1874), a Swedish physicist and one of the pioneers of the science of spectroscopy. Its designation was formally adopted by the International Astronomical Union in 1935.[1] The name was introduced into lunar nomenclature by J. N. Krieger and R. König in 1912.[7]
