1911 Schubart
| Discovery [1] | |
|---|---|
| Discovered by | P. Wild |
| Discovery site | Zimmerwald Obs. |
| Discovery date | 25 October 1973 |
| Designations | |
| MPC designation | (1911) Schubart |
Named after |
Joachim Schubart (German astronomer)[2] |
|
1973 UD · 1928 DW 1933 UX1 · 1941 SU1 1951 AH1 · 1952 DS2 1960 EF · 1968 FM 1972 RO · 1972 TY4 | |
| main-belt · (outer)[1] · Hilda | |
| Orbital characteristics [1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 89.27 yr (32,606 days) |
| Aphelion | 4.6512 AU |
| Perihelion | 3.3013 AU |
| 3.9762 AU | |
| Eccentricity | 0.1697 |
| 7.93 yr (2,896 days) | |
| 136.84° | |
| 0° 7m 27.48s / day | |
| Inclination | 1.6431° |
| 284.84° | |
| 181.75° | |
| Jupiter MOID | 0.5059 AU |
| Jupiter Tisserand parameter | 3.0310 |
| Physical characteristics | |
| Dimensions |
67.476±0.504[3] 80.09±2.0 km |
|
0.0249 ± 0.001 0.035±0.001[3] | |
|
Tholen = P [1] BV = 0.701 UB = 0.217 | |
| 10.11[1] | |
|
| |
1911 Schubart, provisional designation 1973 UD, is a dark Hildian asteroid from the outermost region of the asteroid belt, approximately 70 kilometers in diameter. It was discovered on 25 October 1973, by Swiss astronomer Paul Wild at Zimmerwald Observatory, near Bern, Switzerland.[1]
Orbit and characterization
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).[4] It is the darkest P-type asteroid with a very low geometric albedo of 0.0249.[1]
Naming
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.[2]
References
- 1 2 3 4 5 6 7 "JPL Small-Body Database Browser: 1911 Schubart (1973 UD)" (2017-06-05 last obs.). Jet Propulsion Laboratory. Retrieved 14 June 2017.
- 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1911) Schubart. Springer Berlin Heidelberg. p. 153. ISBN 978-3-540-29925-7. Retrieved 23 August 2016.
- 1 2 Grav, T.; Mainzer, A. K.; Bauer, J.; Masiero, J.; Spahr, T.; McMillan, R. S.; et al. (January 2012). "WISE/NEOWISE Observations of the Hilda Population: Preliminary Results". The Astrophysical Journal. 744 (2): 15. Bibcode:2012ApJ...744..197G. doi:10.1088/0004-637X/744/2/197. Retrieved 14 June 2017.
- ↑ Brož, M.; Vokrouhlický, D. (October 2008), "Asteroid families in the first-order resonances with Jupiter", Monthly Notices of the Royal Astronomical Society: 715–732, Bibcode:2008MNRAS.390..715B, arXiv:1104.4004
, doi:10.1111/j.1365-2966.2008.13764.x
