The asteroid 4276 Clifford (previously known by the provisional designation (1981 XA) was discovered on December 2 1981 by Edward L. G. Bowell at Flagstaff Observatory. It was named in honor of astronomer/author Clifford Cunningham. It is a member of the group of Main belt asteroids known as Mars-crosser asteroids specifically it is listed as an Outer-grazer.
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