Back 157 ارابيا (كويكب) ARZ (1157) Arabia Catalan (1157) Аравия CE (1157) Arabia German 1157 Αραβία Greek 1157 Arabio Esperanto (1157) Arabia Spanish 1157 Arabia Basque عربیا ۱۱۵۷ Persian (1157) Arabia French
| Discovery[1] | |
|---|---|
| Discovered by | K. Reinmuth |
| Discovery site | Heidelberg Obs. |
| Discovery date | 31 August 1929 |
| Designations | |
| (1157) Arabia | |
Named after | Arabian Peninsula[2] |
| 1929 QC · 1955 EC | |
| main-belt · (outer)[3] background[4] | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 87.58 yr (31,987 days) |
| Aphelion | 3.6412 AU |
| Perihelion | 2.7221 AU |
| 3.1816 AU | |
| Eccentricity | 0.1444 |
| 5.68 yr (2,073 days) | |
| 195.98° | |
| 0° 10m 25.32s / day | |
| Inclination | 9.5447° |
| 336.19° | |
| 313.37° | |
| Physical characteristics | |
| Dimensions | 29.01±0.84 km[5] 29.113±4.433 km[6] 55.67 km (calculated)[3] |
| 15.225±0.005 h[a] | |
| 0.057 (assumed)[3] 0.211±0.013[5] 0.247±0.242[6] | |
| C (assumed)[3] | |
| 9.82[6] · 9.89±0.22[7] · 10.00[1][3][5] | |
1157 Arabia, provisional designation 1929 QC, is an asteroid from the outer regions of the asteroid belt, approximately 29 kilometers in diameter. Astronomer Karl Reinmuth discovered it at the Heidelberg Observatory in southwest Germany on 31 August 1929.[8] The asteroid was named for the Arabian Peninsula.
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