Hemingway (crater)
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Crater on Mercury
 Hemingway is in the lower right corner of this MESSENGER image, from its second flyby in October 2008 | |
| Feature type | Impact crater |
|---|---|
| Location | Kuiper quadrangle, Mercury |
| Coordinates | 17°30′N 2°54′W / 17.5°N 2.9°W / 17.5; -2.9 |
| 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?]
The small crater Makeba is southeast of Hemingway.
The dark depression 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] The irregular depression itself may have formed by explosive volcanism.[4][5] There is an unnamed crater to the southeast of Hemingway that may also be the site of explosive volcanism.[4]
Approximate color view
Oblique view facing east with the dark interior crater near center, showing that the dark crater is adjacent to a complex depression
Oblique view facing west with the dark interior crater near center
References
- ↑ A Patch of Black (2009), NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington
- ↑ "Hemingway". Gazetteer of Planetary Nomenclature. NASA. Retrieved 5 June 2020.
- ↑ 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
- 1 2 Thomas, R. J., D. A. Rothery, S. J. Conway, and M. Anand (2014), Long-lived explosive volcanism on Mercury, Geophys. Res. Lett., 41, 6084–6092, doi:10.1002/2014GL061224.
- ↑ David Pegg, David Rothery, M.R. Balme, Susan Conway, 2021. Explosive vent sites on Mercury: Commonplace multiple eruptions and their implications. Icarus 365:114510. doi.org/10.1016/j.icarus.2021.114510
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