It was discovered on 30 March 1952, by the Indiana Asteroid Program at Goethe Link Observatory, United States.
[3] In November 2012, a rotational lightcurve of Edmondson was obtained from photometric observations at the Etscorn Campus Observatory (719) in New Mexico, United States.
Lightcurve analysis gave a well-defined rotation period of 4.208 hours with a brightness variation of 0.29 magnitude (U=3).
[5] According to the surveys carried out by the Japanese Akari satellite, Edmondson measures 21.94 kilometers in diameter and its surface has an albedo of 0.102,[4] while the Collaborative Asteroid Lightcurve Link assumes a more typical albedo for carbonaceous asteroids of 0.08 and calculates a diameter of 20.51 kilometers with an absolute magnitude of 11.8.
[3] This minor planet was named for astronomer Frank K. Edmondson (1912–2008) of Indiana University, the program's founder and director.