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Glinka (crater)
Crater on Mercury / From Wikipedia, the free encyclopedia
Glinka is a pit-floored crater on Mercury, which was discovered in 1974 by Mariner 10 spacecraft.[1] It was named by the IAU in 2008, after Russian composer Mikhail Glinka.[2]
Quick Facts Feature type, Location ...
![]() Photo from MESSENGER's first flyby in January 2008 with Glinka at bottom center | |
Feature type | Impact crater |
---|---|
Location | Beethoven quadrangle, Mercury |
Coordinates | 14.83°N 112.55°W / 14.83; -112.55 |
Diameter | 89 km (55 mi) |
Eponym | Mikhail Glinka |
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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 in MESSENGER images obtained in January 2008, is 20 × 8.5 km.[1] It is surrounded by a bright pyroclastic deposit. Such a feature may have resulted from collapse of a magma chamber underlying the central part of the crater. The collapse feature is an analog of Earth's volcanic calderas.[1]
- Glinka crater
- Closeup of the central pit