891 Gunhild

[2] Gunhild is a non-family asteroid of the main belt's background population when applying the hierarchical clustering method to its proper orbital elements.

All of these low-numbered asteroids have numbers between 164 Eva and 1514 Ricouxa and were discovered between 1876 and the 1930s, predominantly by astronomers Auguste Charlois, Johann Palisa, Max Wolf and Karl Reinmuth.

[9] The result supersedes period determinations of (7.93±0.01 h) by Robert Stephens in 2000,[13] (11.853±0.006 h) by Laurent Bernasconi in 2005,[14] and (10.556±0.003 h) by Janus Kozdon in 2015 (U=2/2/2+).

[15] According to the survey carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer (WISE), Gunhild measures (51.95±5.6), (55.747±0.321) and (63.80±0.67) kilometers in diameter and its surface has an albedo of (0.0718±0.018), (0.057±0.019) and (0.049±0.001), respectively.

[6][7][8] The Collaborative Asteroid Lightcurve Link derives an albedo of 0.0656 and a diameter of 51.89 kilometers based on an absolute magnitude of 10.0.