To Ngoc Van (crater)
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Photo of To Ngoc Van crater (above Bruegel) by MESSENGER
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| Planet | Mercury |
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| Coordinates | Lua error in package.lua at line 80: module 'strict' not found. |
| Diameter | 63 km[1] |
| Eponym | To Ngoc Van[2] |
To Ngoc Van is a pit-floored crater on Mercury, named after the Vietnamese artist Tô Ngọc Vân.[3][better source needed] It was discovered in January 2008 during the first flyby of the planet by MESSENGER spacecraft.[1] Its floor displays an irregularly shaped collapse feature, which is called a central pit. The size of the pit is 21 × 10 km.[1] 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]
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