 In the early 1980s, a rotational lightcurve of "Galanthus" was obtained during a survey conducted by Richard P. Binzel at the McDonald Observatory, Texas.Lightcurve analysis gave a well-defined rotation period of 3.92 hours with a brightness variation of 0.28 magnitude ().The period was confirmed from photometric observations by astronomers at the Palomar Transient Factory in October 2015, which gave a similar period of 3.918 hours and an amplitude of 0.22 magnitude ().