[3] Marina was discovered on 13 September 1931, by Soviet astronomer Grigory Neujmin at the Simeiz Observatory on the Crimean peninsula.
[3] Marina is a non-family background asteroid of the Hilda group, located in the outermost region of the main-belt and in a 3:2 resonance with the giant planet Jupiter.
[7] In October 2010, photometric observations in the R-band by astronomers at the Palomar Transient Factory in California gave a similar period of 9.571 hours and an amplitude of 0.09 (U=1).
[5][6] The Collaborative Asteroid Lightcurve Link derives an albedo of 0.045 and a diameter of 55.07 kilometers based on an absolute magnitude of 10.28.
[4] This minor planet was named after Marina Davydovna Lavrova–Berg (1898–1943), a scientific collaborator who worked at the Pulkovo Observatory near Saint Petersburg during 1931–1942.