1911 Schubart
| Discovery | |
|---|---|
| Discovered by | P. Wild |
| Discovery site | Zimmerwald Obs. |
| Discovery date | 25 October 1973 |
| Designations | |
| MPC designation | (1911) Schubart |
|
Named after
|
Joachim Schubart (astronomer) |
| 1973 UD · 1928 DW 1933 UX1 · 1941 SU1 1951 AH1 · 1952 DS2 1960 EF · 1968 FM 1972 RO · 1972 TY4 |
|
| main-belt (outer) | |
| Orbital characteristics | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 88.05 yr (32160 days) |
| Aphelion | 4.6622 AU (697.46 Gm) |
| Perihelion | 3.3123 AU (495.51 Gm) |
| 3.9873 AU (596.49 Gm) | |
| Eccentricity | 0.16929 |
| 7.96 yr (2908.1 d) | |
| 61.426° | |
| 0° 7m 25.644s / day | |
| Inclination | 1.6404° |
| 285.08° | |
| 182.43° | |
| Earth MOID | 2.32888 AU (348.395 Gm) |
| Jupiter MOID | 0.49539 AU (74.109 Gm) |
| Jupiter Tisserand parameter | 3.030 |
| Physical characteristics | |
| Dimensions | 80.09±2.0 km |
|
Mean radius
|
40.045 ± 1 km |
| 0.0249 ± 0.001 | |
| BV = 0.701 mag UB = 0.217 mag Tholen = P |
|
| 10.11 | |
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.
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