Hemingway (crater)

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Hemingway
Hemingway crater.png
Hemingway is in the lower right corner of this MESSENGER image, from its second flyby in October 2008
Planet Mercury
Coordinates 17°30′N2°54′W / 17.5°N 2.9°W / 17.5; -2.9
Quadrangle Kuiper
Diameter 126 km (78 mi)
Eponym Ernest Hemingway

Hemingway is a crater on Mercury. It has a patch of very dark material located near its center. The dark color is likely due to rocks that have a different mineralogical composition from that of the surrounding surface. [1]

The crater's name was adopted by the International Astronomical Union (IAU) in 2009. It is named for the American author Ernest Hemingway. [2] [ why? ]

Dark interior crater

The dark impact crater near the center of Hemingway is truly black, and due to its superposition over the other structures in the crater, it is a young feature. The dark material is probably abundant in the subsurface of the crater and is being exposed by mass wasting processes and the formation of hollows. [3]

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References

  1. A Patch of Black (2009), NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington
  2. "Hemingway". Gazetteer of Planetary Nomenclature. NASA . Retrieved 5 June 2020.
  3. Xiao, Z., Xu, R., Wang, Y., Chang, Y., Xu, R., & Cui, J. (2021). Recent dark pyroclastic deposits on Mercury. Geophysical Research Letters, 48, e2021GL092532. doi.org/10.1029/2021GL092532