 MESSENGER image | |
| Feature type | Peak-ring impact basin |
|---|---|
| Location | Bach quadrangle, Mercury |
| Coordinates | 66°58′S 77°15′E / 66.97°S 77.25°E / -66.97; 77.25 |
| Diameter | 151.49 km (94.13 mi) |
| Eponym | Betti Alver |
Alver is a crater on Mercury. It has a diameter of 151.49 kilometers. Its name was adopted by the International Astronomical Union (IAU) on March 15, 2013. Alver is named for the Estonian poet Betti Alver.
Alver is one of 110 peak ring basins on Mercury. It lies in southern Utaridi Planitia.
On the western side of the peak ring is a dark spot of low reflectance material (LRM), closely associated with hollows.
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Exaggerated color image with Alver at bottom center
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Detail of Alver crater
References
- "Alver". Gazetteer of Planetary Nomenclature. NASA. Retrieved 20 January 2020.
- 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.
- 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
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