It was discovered on 4 March 1932, by English astronomer Harry Edwin Wood at the Union Observatory in Johannesburg, South Africa.

[15] In the Tholen classification, Dysona's spectral type is ambiguous, closest to a primitive P-type and somewhat similar to a D- and C-type asteroid (PDC).

[1][3] In April 2006, a rotational lightcurve of Dysona was obtained by Julian Oey at Leura Observatory (E17) in Australia.

[12] In 2016, a modeled lightcurve using data from UAPC, the Palomar Transient Factory survey, and individual observers, gave a concurring period of 8.60738 hours as well an astronomical pole of (125.0°, −68.0°) in ecliptic coordinates (λ, β).

[5][6][7][8][9][10][11] The Collaborative Asteroid Lightcurve Link adopts the results obtained by IRAS, that is, an albedo of 0.0425 and a diameter of 83.05 kilometers based on an absolute magnitude of 9.45.