Discovered by K. Reinmuth MPC designation 1941 Wild Discovered 6 October 1931 Discoverer Karl Wilhelm Reinmuth Asteroid group Asteroid belt | Discovery date 6 October 1931 Minor planet category main-belt · Hilda Orbits Sun Named after Paul Wild | |
Alternative names 1931 TN1 · 1971 SO1
A915 UA Observation arc 100.57 yr (36,734 days) Discovery site Landessternwarte Heidelberg-Königstuhl Similar Asteroid belt, 1862 Apollo, 81P/Wild, Sun, 1419 Danzig | ||
1941 Wild, provisional designation 1931 TN1, is an eccentric Hilidan asteroid from the outermost region of the asteroid belt, approximately 20 kilometers in diameter. It was discovered on 6 October 1931, by German astronomer Karl Reinmuth at Heidelberg Observatory in southern Germany.
Located in the outermost part of the main-belt, Wild is a member of the Hilda family, a large group of asteroids that are thought to have originated from the Kuiper belt. They orbit in a 3:2 orbital resonance with the gas giant Jupiter, meaning that for every 2 orbits Jupiter completes around the Sun, a Hildian asteroid will complete 3 orbits. As the Hildas neither cross the path of any of the planets nor can they be pulled out of orbit by Jupiter's gravitational field due to their resonance, it is likely that the asteroid will remain in a stable orbit for thousands of years.
Wild orbits the Sun at a distance of 2.8–5.1 AU once every 7 years and 10 months (2,871 days). Its orbit has an eccentricity of 0.29 and an inclination of 4° with respect to the ecliptic. Wild' observation arc begins with its discovery observation, as A915 UA, a previous identification made at Heidelberg in 1918, remained unused.
According to the survey on the Hilda Population carried out by the Wide-field Infrared Survey Explorer (WISE) with its subsequent NEOWISE mission, Wild measures 17.2 kilometers in diameter, and its surface has an albedo of 0.152, while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for carbonaceous asteroids 0.057, and calculates a diameter of 24.3 kilometers based on an absolute magnitude of 11.8. WISE also classifies the carbonaceous asteroid as a metallic M-type.
A rotational light-curve of Wild was obtained by Richard P. Binzel in October 1987. It gave a rotation period of 9.05 hours with a brightness variation of 0.36 magnitude (U=2). A longer period of 45.6 hours was derived from photometric observations at the Palomar Transient Factory in September 2011 (U=1)
The minor planet was named in honor of Swiss astronomer Paul Wild (1925–2014), who worked at the Astronomical Institute of the University of Bern. Wild's research focused on the discovery and observation of supernovae in other galaxies. He was also a prolific discoverer of minor planets and comets, most notably of comet Wild 2, which he discovered at the university's nearby Zimmerwald Observatory, and which was later visited by NASA's Stardust Mission. Naming citation was published before November 1977 (M.P.C. 3938).