Named after Vicenzo Cerulli - Italian astronomer (1859-1927).
Cerulli Crater is a crater in the Ismenius Lacus quadrangle on Mars with a diameter of 130 km. Impact craters generally have a rim with ejecta around them; in contrast, volcanic craters usually do not have a rim or ejecta deposits. As craters get larger they usually have a central peak. (wikipedia entry)
A crater is a circular depression likely created by an impact event. On Mars large craters are named after deceased scientists, writers and others who have contributed to the lore of Mars. Small creaters (less than 60km) are named after small towns and villages.