Hartwig (lunar crater)

Hartwig
Coordinates6°06′S 80°30′W / 6.1°S 80.5°W / -6.1; -80.5
Diameter80 km
DepthUnknown
Colongitude81° at sunrise
EponymKarl E. Hartwig

Hartwig is a lunar impact crater that is located near the western limb of the Moon. It is attached to the eastern rim of the prominent crater Schlüter, to the northeast of the Montes Cordillera mountain range that surrounds the Mare Orientale. To the east-northeast of Hartwig is the larger crater Riccioli.

This crater lies within the outer blanket of ejecta that surrounds the Mare Orientale impact basin, and its form has been modified by this material. Much of the eastern rim of the crater is overlaid by this ejecta, and only a portion of the western rim near Schluter remains well-formed. The interior floor has likewise been modified. There is a small crater on the floor near the northeastern rim. Hartwig is associated with a magnetic anomaly.[1]

This crater is named after German astronomer Karl E. Hartwig (1851–1923), a specialist in lunar rotation theory.[2]

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 Hartwig.

Hartwig Latitude Longitude Diameter
A 5.7° S 79.8° W 10 km
B 8.3° S 77.4° W 11 km

References

  1. ↑ Blewett, David T.; et al. (February 2011). "Lunar swirls: Examining crustal magnetic anomalies and space weathering trends". Journal of Geophysical Research. 116 (E2) E02002. Bibcode:2011JGRE..116.2002B. doi:10.1029/2010JE003656.
  2. ↑ Menzel, D. H.; et al. (1971). "Report on Lunar Nomenclature by the Working Group of Commission 17 of the IAU". Space Science Reviews. 12 (2): 136–186. Bibcode:1971SSRv...12..136M. doi:10.1007/BF00171763. S2CID 122125855. See p. 183.

Sources