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Guinness is a crater on Mercury. Its name was adopted by the
International Astronomical Union The International Astronomical Union (IAU; , UAI) is an international non-governmental organization (INGO) with the objective of advancing astronomy in all aspects, including promoting astronomical research, outreach, education, and developmen ...
(IAU) on February 7, 2025. The crater is named for Irish painter
May Guinness May Guinness (11 March 1863 – 16 July 1955) was an Irish painter, noted as "the first practising artist to introduce a modernist sensibility into Irish art". Early life and education Mary Catherine or May Guinness was born in Rathfarnham, Cou ...
. The central peak complex of Guinness is a ''dark spot'' associated with hollows.Zhiyong Xiao, Robert G. Strom, David T. Blewett, Paul K. Byrne, Sean C. Solomon, Scott L. Murchie, Ann L. Sprague, Deborah L. Domingue, Jörn Helbert, 2013. ''Dark spots on Mercury: A distinctive low-reflectance material and its relation to hollows''. Journal of Geophysical Research Planets.
doi.org/10.1002/jgre.20115
/ref> Guinness is to the southwest of the crater Munkácsy.


References

Impact craters on Mercury {{Mercury-planet-stub