.jpg) Photo fromMESSENGER's first flyby in January 2008 with Glinka at bottom center | |
| Feature type | Impact crater |
|---|---|
| Location | Beethoven quadrangle,Mercury |
| Coordinates | 14°50′N112°33′W / 14.83°N 112.55°W /14.83; -112.55 |
| Diameter | 89 km (55 mi) |
| Eponym | Mikhail Glinka |
Glinka is a pit-floored crater onMercury, which was discovered in 1974 byMariner 10 spacecraft.[1] It was named by theIAU in 2008, after Russian composerMikhail Glinka.[2]
Its floor is covered by the smooth plain material and displays a kidney-shaped collapse feature, which is also called a central pit. The size of the pit, which was first noticed inMESSENGER images obtained in January 2008, is20 × 8.5 km.[1] It is surrounded by a brightpyroclastic deposit. Such a feature may have resulted from collapse of amagma chamber underlying the central part of the crater. The collapse feature is an analog of Earth's volcaniccalderas.[1][3]
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