Discovered by P. Wild MPC designation 1911 Schubart Observation arc 88.05 yr (32160 days) Orbits Sun Named after Joachim Schubart Asteroid group Asteroid belt | Discovery date 25 October 1973 Minor planet category main-belt (outer) Discovered 25 October 1973 Discoverer Paul Wild Discovery site Zimmerwald Observatory | |
Alternative names 1973 UD · 1928 DW
1933 UX1 · 1941 SU1
1951 AH1 · 1952 DS2
1960 EF · 1968 FM
1972 RO · 1972 TY4 Similar 153 Hilda, Asteroid belt, Solar System, Sun, Jupiter trojan | ||
1911 Schubart, provisional designation 1973 UD, is an outer main-belt asteroid discovered on October 25, 1973, by Paul Wild at Zimmerwald Observatory, near Bern, Switzerland.
With an diameter of 80 kilometers, it is one of the largest members of the Hilda family asteroids, which are in 3:2 orbital resonance with the gas-giant Jupiter. It is also the largest and name-giving body of the Schubart family, a collisional subgroup with related orbits, believed to have originated from a previously existing, larger asteroid (also see Asteroid family). It is the darkest P-type asteroid with a very low geometric albedo of 0.0249.
The asteroid is named in honor of German astronomer Joachim Schubart, from the Astronomisches Rechen-Institut. He developed an averaging techniques for observing the long-term motions of minor planets, which he applied to study in detail the members of the Hilda family.