1922 Zulu
| Discovery [1][2] | |
|---|---|
| Discovered by | E. L. Johnson |
| Discovery site | Johannesburg (UO) |
| Discovery date | 25 April 1949 |
| Designations | |
| MPC designation | 1922 Zulu |
|
Named after
|
Zulu (tribe)[3] |
| 1949 HC | |
| main-belt (outer) | |
| Orbital characteristics [2][4] | |
| Epoch 27 June 2015 (JD 2457200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 66.38 yr (24,246 days) |
| Aphelion | 4.7947 AU |
| Perihelion | 1.6797 AU |
| 3.2372 AU | |
| Eccentricity | 0.4811 |
| 5.82 yr (2127.4 days) | |
| 86.339° | |
| Inclination | 35.429° |
| 226.52° | |
| 31.422° | |
| Earth MOID | 0.7174 AU |
| Physical characteristics | |
| 18.64 h | |
| 12.2[5] 12.3[2] |
|
1922 Zulu, provisional designation 1949 HC, is an outer main-belt asteroid discovered on April 25, 1949 by Ernest Leonard Johnson at Johannesburg Union Observatory in South Africa.[1] It is one of very few asteroids located in the 2 : 1 mean motion resonance with Jupiter.[6] This asteroid was lost shortly after discovery (see Lost asteroid), and only rediscovered in 1974 by Richard Eugene McCrosky, Cheng-yuan Shao and JH Bulger based on a predicted position by C. M. Bardwell of the Cincinnati Observatory.[7] It is quite highly inclined for asteroids in the asteroid belt, with an inclination of 35.4 degrees. This may be related to its 2:1 resonance with Jupiter.
The asteroid is named after the South African tribe, Zulu, to recognize some of the tribesmen who were faithful workmen at the Johannesburg Union Observatory. It is closely related to 1362 Griqua and 1921 Pala, which also received tribal name and librate in the 2:1 ratio of Jupiter's mean motion as well.[3]
References
- ↑ 1.0 1.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 2.0 2.1 2.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 3.0 3.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
External links
- Lua error in package.lua at line 80: module 'strict' not found.
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