and poles In March 2018, a rotational light curve of Kunigunde was obtained from photometric observations by French amateur astronomer René Roy. Light-curve analysis gave a well-defined rotation period of hours with a brightness variation of magnitude (). Richard Ditteon at the Oakley Southern Sky Observatory determined a period of with an amplitude of magnitude (). Photometry by Angeli and Guimarães at observatories in Brazil and Argentina gave a similar period of hours (). In 2013, an international study modeled a light curve with a sidereal period of 8.82653 hours and found two spin axes at (47.0°, 57.0°) and (234.0°, 50.0°) in ecliptic coordinates (λ, β) (). Diameter and albedo According to the survey carried out by the Japanese Akari satellite, the Infrared Astronomical Satellite IRAS, and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Kunigunde measures (), () and () kilometers in diameter and its surface has an albedo of (), () and (), respectively. The Collaborative Asteroid Lightcurve Link derives an albedo of 0.0792 and a diameter of 39.29 kilometers based on an absolute magnitude of 10.4. Further published mean-diameters and albedos by the WISE team include () and () with corresponding albedos of () and (). An asteroid occultation on 21 November 2004, gave a best-fit ellipse dimension of 39.0 × 39.0 km. These timed observations are taken when the asteroid passes in front of a distant star. However, the quality of the measurement is poorly rated. References External links Lightcurve Database Query (LCDB), at www.minorplanet.info Dictionary of Minor Planet Names, Google books Asteroids and comets rotation curves, CdR – Geneva Observatory, Raoul Behrend Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center 000936 Discoveries by Karl Wilhelm Reinmuth Named minor planets 19200908