It was discovered on 20 February 1993, by Belgian astronomer Eric Elst at the CERGA Observatory in Caussols, southeastern France.
The body's rotation period, pole and shape remain unknown.
[2] According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Boulanger measures 7.378 kilometers in diameter and its surface has an albedo of 0.270.
[4] This minor planet was named after Enlightenment philosopher and geologist Nicolas Antoine Boulanger (1722–1759).
[1] The official naming citation was published by the Minor Planet Center on 24 June 2002 (M.P.C.