1511 Daléra
| Discovery | |
|---|---|
| Discovered by | L. Boyer |
| Discovery site | Algiers Obs. |
| Discovery date | 22 March 1939 |
| Designations | |
| (1511) Dalera | |
Named after | Paul Daléra (friend of discoverer) |
| 1939 FB · 1928 DB 1954 LM | |
| main-belt · (inner) | |
| Orbital characteristics | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 88.75 yr (32,415 days) |
| Aphelion | 2.6137 AU |
| Perihelion | 2.1022 AU |
| 2.3579 AU | |
| Eccentricity | 0.1085 |
| 3.62 yr (1,323 days) | |
| 235.58° | |
| 0° 16m 19.92s / day | |
| Inclination | 4.0688° |
| 81.730° | |
| 97.439° | |
| Physical characteristics | |
| Dimensions | 7.15 km (calculated) 11.36±3.14 km 13.515±0.231 km 18.23±1.28 km |
| 3.880±0.001 h 3.881±0.001 h 4.2227±0.0011 h | |
| 0.03±0.01 0.080±0.011 0.10±0.05 0.20 (assumed) | |
| S | |
| 12.644±0.002 (R) · 12.70 · 12.8 · 12.99 · 13.09 | |
1511 Daléra, provisional designation 1939 FB, is an asteroid from the inner regions of the asteroid belt, approximately 12 kilometers in diameter. It was discovered on 22 March 1939, by French astronomer Louis Boyer at the Algerian Algiers Observatory, North Africa, and named after Paul Daléra, a friend of the discoverer.