[2] The outer rim of Hertzsprung has been damaged and modified by several notable impacts (mentioned above) and a number of smaller craters.

A chain of small craters, designated Catena Lucretius, begins at the southeastern outer rim and proceeds toward the west-northwest until it connects with the perimeter of the inner basin.

[3] The equator of the Moon passes through this formation, being located to the south of the midpoint and cutting through the central basin.

By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Hertzsprung.

In June 2022 NASA released a picture of the crater produced by the purported rocket body.