Lowell (Martian crater) Lowell (Martian crater) The Lowell Crater is a large impact crater on Aonia Terra in the Thaumasia quadrangle of Mars. The crater is about 203 kilometers (127 miles) in diameter. Lowell Crater has a ring of mountains on its floor which gives it a sort of bull's eye appearance. Its nearby features include the craters Slipher to the north, Douglass to the east, and Coblentz to the southwest, the small mountain Aonia Mons to the west, and Aonia Planum to the southeast. Lowell Crater is named for Percival Lowell who built the Lowell Observatory in Flagstaff, Arizona, in 1894, and
A. Lawrence Lowell including Widener Library, the Memorial Church and many others, had transformed the university's infrastructure. Also among the new campus buildings of Lowell's tenure was the President's House (later called Loeb House) at 17 Quincy Street, which Lowell commissioned from his cousin Guy Lowell. It remained the residence of succeeding Harvard Presidents until 1971. Lowell is remembered as well for a donation of one million dollars to help found the Harvard Society of Fellows. Years before, he had given $10,500 to purchase a 13-inch telescope for his deceased brother Percival's Lowell Observatory, which in 1930 gained fame as the Pluto Discovery