Geological Chronicle
Hertz is a lunar impact crater on the far side of the Moon, located just behind the eastern limb, with a diameter of 82.94 kilometers. Due to libration, the crater can sometimes be observed from Earth under favorable lighting conditions. It lies to the west-southwest of the larger crater Fleming and north-northeast of the smaller Moiseev, which is joined to Hertz by the satellite crater Moiseev Z to form a short crater chain.
The crater formation is somewhat worn, with a wide inner wall. Along the northern inner wall lies a pear-shaped crater. The interior floor is relatively featureless, with only a small ridge offset to the southwest of the midpoint.
Before receiving its name, the feature was known as Crater 200. In 1961, the crater was named after the German physicist Heinrich Rudolf Hertz.