It was discovered on 11 October 1931, by Soviet astronomer Grigory Neujmin at the Simeiz Observatory on the Crimean peninsula, and given the provisional designation 1931 TO.
[4] According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Hyperborea measures between 55.14 and 64.40 kilometers in diameter and its surface has an albedo between 0.03 and 0.0450.
[6][7][8][9][10][11][12] The Collaborative Asteroid Lightcurve Link derives an albedo of 0.0411 and a diameter of 57.11 kilometers based on an absolute magnitude of 10.3.
[4] This minor planet was named after Hyperborea, the homeland of the Hyperboreans, a Greek mythical race of giants associated with the cult of Apollo.
Lutz Schmadel, the author of the Dictionary of Minor Planets, learned about the naming from Russian astronomer Nataliya Sergeevna Samoilova-Yakhontova (see 1653 Yakhontovia).