Alver (crater)
Crater on Mercury
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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.[1]
Feature typePeak-ring impact basin
LocationBach quadrangle, Mercury
Coordinates66.97°S 77.25°E
Diameter151.49 km (94.13 mi)
MESSENGER image | |
| Feature type | Peak-ring impact basin |
|---|---|
| Location | Bach quadrangle, Mercury |
| Coordinates | 66.97°S 77.25°E |
| Diameter | 151.49 km (94.13 mi) |
| Eponym | Betti Alver |
Alver is one of 110 peak ring basins on Mercury.[2] 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.[3] At least four irregular depressions are present in the vicinity of the northwestern peak ring. These depressions are evidence of explosive volcanism on the floor of the crater.[4]
Exaggerated color image with Alver at bottom center
Detail of Alver crater
