Stein is an elongated impact crater formation that lies just to the east of the larger crater Tiselius, on the far side of the Moon. Farther to the east-southeast of Stein lies Krasovskiy.
This crater has an asymmetrical shape with an outward bulge along the north-northeastern rim. The resulting crater is roughly egg-shaped, with a wide ledge along the north-northwestern floor. The remaining crater is a bowl-shaped feature with simple slopes along the inner walls and a nearly featureless interior floor. The outer rim has not been significantly eroded, and is marked only by a tiny craterlet along the southern edge. There are small craterlets along the base of the inner wall along the north-northwestern side.
Menzel, D. H.; Minnaert, M.; Levin, B.; Dollfus, A.; Bell, B. (1971). "Report on Lunar Nomenclature by the Working Group of Commission 17 of the IAU". Space Science Reviews. 12 (2): 136–186. Bibcode:1971SSRv...12..136M. doi:10.1007/BF00171763. S2CID122125855.