Tags: Crater.
O’Day is a prominent lunar impact crater that is located on the far side of the Moon. It intrudes into the northwestern edge of Mare Ingenii and the rim is lower on that side. To the northwest is the crater pair of Holetschek and Sierpinski. Southwest of O’Day lies the crater Seidel. It is named in honour of the American physicist Marcus O’Day.The crater rim of O’Day remains sharp-edged and the inner wall is terraced especially in the northwestern half away from the mare.
