Vishniac (crater)
Vishniac is a small lunar impact crater that lies on the far side of the Moon. It is located within the Mare Orientale impact basin, specifically in the inner ring of mountains called the Montes Rook. Vishniac lies within this ring system, to the southeast of the crater Kopff.
The crater is relatively young, geologically speaking, and possesses a crisp, well-defined rim. The interior walls slope down to a small, bowl-shaped floor. Due to its location within the Montes Rook, the surrounding terrain is rugged and mountainous.
Vishniac crater is named in honor of Roman Vishniac (1897-1990), a Russian-American photographer and microbiologist known for his pioneering work in photomicroscopy and his photographs of Jewish life in Eastern Europe before the Holocaust. The crater was officially named by the International Astronomical Union (IAU). Its coordinates are approximately 20.1° S latitude and 84.4° W longitude.