Observations performed at the Palmer Divide Observatory inColorado Springs, Colorado, during 2007 produced alight curve with an estimated period of14.766±0.006 hours with a brightness range of0.11±0.02 inmagnitude.[4] A 2014 study found a period of14.931±0.001 hours with a variation of0.12±0.01 in magnitude. The light curve was found to be irregular, suggesting the asteroid has an irregular shape.[5] On September 30, 2015, the asteroid was observed occulting the 7th magnitude star HIP 14977 from multiple sites in Europe. The resulting chords showed a nearly circularprolate spheroid profile.[6]
^Warner, Brian D. (September 2007), "Asteroid Lightcurve Analysis at the Palmer Divide Observatory",The Minor Planet Bulletin,Bibcode:2007MPBu...34...72W.
^Pilcher, Frederick (January 2015), "Rotation Period Determinations for 275 Sapientia, 309 Fraternitas, and 924 Toni",Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers, vol. 42, no. 1, pp. 38–39,Bibcode:2015MPBu...42...38P.
^Miles, R.; Haymes, T. (December 2015), "Asteroids and Remote Planets Section: Stellar occultation by asteroid (275) Sapientia well seen from the UK",Journal of the British Astronomical Association,125 (6):331–332,Bibcode:2015JBAA..125..331M.