Fischer is a lunar impact crater that lies in the northeastern part of the interior floor of Mendeleev, a huge walled plain. This feature is located on the far side of the Moon relative to the Earth, and can only be viewed from a spacecraft.
This crater has a slender, circular rim and an interior that has the same low albedo as the surrounding floor. There is a smaller impact crater within the interior, adjacent to the northwestern inner wall. The rim and the floor of Fischer are pitted by several tiny craterlets.
The name of the crater is said to be in honor of two German Nobel Prize in Chemistry laureates: Emil Fischer and Hans Fischer.
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