Back 1246 تشاكا (كويكب) ARZ (1246) Чака CE (1246) Chaka German 1246 Σάκα Greek 1246 Chaka Esperanto (1246) Chaka Spanish 1246 Chaka Basque سیارک ۱۲۴۶ Persian (1246) Chaka French 1246 Chaka Hungarian
| Discovery[1] | |
|---|---|
| Discovered by | C. Jackson |
| Discovery site | Johannesburg Obs. |
| Discovery date | 23 July 1932 |
| Designations | |
| (1246) Chaka | |
Named after | Shaka (King of the Zulus)[2] |
| 1932 OA | |
| main-belt[1][3] · (middle) background[4][5] | |
| Orbital characteristics[3] | |
| Epoch 27 April 2019 (JD 2458600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 86.29 yr (31,519 d) |
| Aphelion | 3.4329 AU |
| Perihelion | 1.8068 AU |
| 2.6198 AU | |
| Eccentricity | 0.3103 |
| 4.24 yr (1,549 d) | |
| 128.91° | |
| 0° 13m 56.64s / day | |
| Inclination | 16.004° |
| 290.52° | |
| 54.847° | |
| Physical characteristics | |
| 17.634±0.498 km[6][7] 17.73±3.89 km[8] 18.11±0.9 km[9] 19.596±0.035 km[10] 20.84±1.39 km[11] | |
| 25.462±0.001 h[a] | |
| 0.195[11] 0.2045[10] 0.2351[9] 0.26[8] 0.310[6] | |
| A (S3OS2-TH)[12] Sl (S3OS2-BB)[12] | |
| 10.8[8][11] 10.9[1][3][6][9][10] | |
1246 Chaka, provisional designation 1932 OA, is a background asteroid from the central regions of the asteroid belt, approximately 18 kilometers (11 miles) in diameter. It was discovered on 23 July 1932, by South African astronomer Cyril Jackson at the Union Observatory in Johannesburg.[1] The uncommon A/Sl-type asteroid has a longer than average rotation period of 25.5 hours.[13] It was named for the Zulu King Shaka.[2]
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