Dorsa Smirnov at Sunrise
Dorsa Smirnov is a system of wrinkle ridges that run North-South along the Eastern side of Mare Serenitatis. As it is a low profile object, rising only a few hundred metres in height above the basaltic plain, it is most easily seen at local sunrise and sunset. The ridge itself is a dark object on a dark background. Dorsa Smirnov is the name given to the Northern-most ridge; the Southern portion is called Dorsa Lister, though together they comprise one single large ridge feature.
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