[3] Stephania is a non-family asteroid of the main belt's background population, when applying the Hierarchical Clustering Method to its proper orbital elements.

[5] It orbits the Sun in the inner asteroid belt at a distance of 1.7–3.0 AU once every 3 years and 7 months (1,315 days).

[14] The Wide-field Infrared Survey Explorer (WISE) has also characterized it as a primitive P-type asteroid.

[b] According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite and the NEOWISE mission of NASA's WISE telescope, Stephania measures between 31.12 and 38.46 kilometers in diameter and its surface has a low albedo between 0.03 and 0.075.

[6][7][8][9][10][11][12] The Collaborative Asteroid Lightcurve Link derives an albedo of 0.0607 and a diameter of 31.04 kilometers based on an absolute magnitude of 11.2.