| |||||||||
| General Characteristics | |
|---|---|
| Latitude | 48.6° S |
| Longitude | 177.4° W |
| Diameter | 77 km |
| Depth | Unknown |
| Selenographic Colongitude | Unknown |
| Name Source | Kurt Alder |
Alder is a crater on Earth's Moon, named after Nobel-winning chemist Kurt Alder. It is located in the South Pole-Aitken basin.
Alder crater is associated with the only area in the basin not dominated by the pyroxene rocks typical of lunar lowlands. This alder ejecta area is on spectrographic evidence instead principally anorthosite rock, typical of the lunar highlands.
By convention these features are identified on Lunar maps by placing the letter on the side of the crater mid-point that is closest to Alder crater.
| Alder | Latitude | Longitude | Diameter |
|---|---|---|---|
| E | 47.6° S | 172.3° E | 16 km |