It was discovered on 9 December 1912, by German astronomer Heinrich Vogt at the Heidelberg-Königstuhl State Observatory in southwest Germany.
[2] Marghanna is a non-family asteroid of the main belt's background population when applying the hierarchical clustering method to its proper orbital elements.
[3][5][12] In May 2011, a rotational lightcurve of Marghanna was obtained from photometric observations by American astronomer Brian Skiff and collaborators using telescopes at the Lowell Observatory in Flagstaff, Arizona.
The 2019-revised lightcurve analysis gave a well-defined rotation period of (20.625±0.011) hours with a small brightness variation of (0.12±0.01) magnitude, indicative of a rather spherical shape (U=3).
[15] According to the surveys carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer (WISE), the Infrared Astronomical Satellite IRAS, and the Japanese Akari satellite, Marghanna measures (67.235±0.513), (74.32±1.6) and (78.69±1.62) kilometers in diameter and its surface has an albedo of (0.059±0.007), (0.0484±0.0484) and (0.043±0.002), respectively.