|Discovered by||P. Wild|
|Discovery site||Zimmerwald Obs.|
|Discovery date||25 October 1973|
|MPC designation||1911 Schubart|
|Joachim Schubart (astronomer)|
|1973 UD · 1928 DW
1933 UX1 · 1941 SU1
1951 AH1 · 1952 DS2
1960 EF · 1968 FM
1972 RO · 1972 TY4
|Orbital characteristics |
|Epoch 27 June 2015 (JD 2457200.5)|
|Uncertainty parameter 0|
|Observation arc||87.28 yr (31,879 days)|
|7.98 yr (2915.0 days)|
|Earth MOID||2.3343 AU|
|BV = 0.701 mag
UB = 0.217 mag
Tholen = P
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.
- "JPL Small-Body Database Browser: 1911 Schubart (1973 UD)" (2015-06-09 last obs.). Jet Propulsion Laboratory. Retrieved October 2015.
- Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1911) Schubart. Springer Berlin Heidelberg. p. 153. ISBN 978-3-540-29925-7. Retrieved October 2015.
- Brož, M.; Vokrouhlický, D. (October 2008), "Asteroid families in the first-order resonances with Jupiter", Monthly Notices of the Royal Astronomical Society: 715–732, arXiv:1104.4004, Bibcode:2008MNRAS.390..715B, doi:10.1111/j.1365-2966.2008.13764.x
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