Two rotational lightcurves of Vinterhansenia were obtained from photometric observations taken by Kevin Ivarsen in October 2003, and Laurent Bernasconi in March 2005.
Lightcurve analysis gave a rotation period of 13.7 and 13.77 hours with a brightness variation of 0.15 and 0.18 magnitude, respectively (U=2/2).
[9][10] According to the space-based surveys carried out by the Infrared Astronomical Satellite IRAS, and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Vinterhansenia measures between 20.76 and 26.23 kilometers in diameter, and its surface has an albedo between 0.040 and 0.078.
[4][5][6][7][8] The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.0599 and a diameter of 21.63 kilometers with an absolute magnitude of 12.0.
[3] This minor planet was named for Danish astronomer Julie Vinter Hansen (1890–1960), who worked at the Copenhagen Observatory and was director of the International Astronomical Union's telegram bureau and Editor of its Circulars (also see Central Bureau for Astronomical Telegrams)[2] The official naming citation was published by the Minor Planet Center in January 1956 (M.P.C.