Aneirin
MESSENGER WAC mosaic
PlanetMercury
Coordinates27°28′S 2°41′W / 27.47°S 2.68°W / -27.47; -2.68
QuadrangleDiscovery
Diameter467 km (290 mi)
EponymAneirin
Southern rim of Aneirin

Aneirin is a crater on Mercury. It has a diameter of 467 kilometers. Its name was adopted by the International Astronomical Union (IAU) on June 13, 2014. Aneirin is named for the Welsh poet Aneirin.[1] Prior to naming, the crater was referred to as b37.[2]

Darío crater lies on the western rim of Aneirin. The lobate scarp that cuts across Darío lies along the rim of Aneirin, an unusual situation suggesting that the scarp indicates a zone of weakness extending to a depth of tens of kilometers along the original floor of Aneirin.[2]

References

  1. ^ "Aneirin". Gazetteer of Planetary Nomenclature. NASA. Retrieved 20 January 2020.
  2. ^ a b Chapman, C. R., Baker, D. M. H., Barnouin, O. S., Fassett, C. I., Marchie, S., Merline, W. J., Ostrach, L. R., Prockter, L. M., and Strom, R. G., 2018. Impact Cratering of Mercury. In Mercury: The View After MESSENGER edited by Sean C. Solomon, Larry R. Nittler, and Brian J. Anderson. Cambridge Planetary Science. Chapter 9.


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