Geological Chronicle
Fitzgerald is a large impact crater on the far side of the Moon, spanning 104 km in diameter. It lies to the west-southwest of Cockcroft and about two crater diameters northeast of Morse. Named for Irish physicist George Francis FitzGerald, its profile has softened and eroded under subsequent nearby impacts.
Along the northwest, the outer rim joins the younger satellite crater FitzGerald W. Faint ray material extends from the southeastern rim of this satellite across the western floor of Fitzgerald, although it remains unclear whether this impact is the source or if the rays originated from Moore F to the north.
Several smaller craters lie along the rim, including a joined pair on the eastern edge and two more along the western crest. Inner walls show traces of past slumping and terracing that have smoothed out over time, leaving the crater floor as a nearly level, featureless plain marked only by slight irregularities in the northeast.