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Semeykin Crater Drainage, as seen by THEMIS. Click on image to see details of beautiful drainage system.
|Eponym||Boris Semeykin, a Soviet astronomer (1900-1937)|
Semeykin Crater is a crater in the Ismenius Lacus quadrangle on Mars. It is located at 41.8° north latitude and 351.4° west longitude. Semeykin Crater is 76.0 km in diameter and was named after Boris Semeykin, a Soviet astronomer (1900-1937). 
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