4713 Steel
For other uses, see Steel (disambiguation).
| Discovery | |
|---|---|
| Discovered by | R. H. McNaught |
| Discovery site | Siding Spring Obs. |
| Discovery date | 26 August 1989 |
| Designations | |
| (4713) Steel | |
Named after | Duncan Steel (New Zealand astronomer) |
| 1989 QL | |
| main-belt · Hungaria | |
| Orbital characteristics | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 40.28 yr (14,713 days) |
| Aphelion | 2.0683 AU |
| Perihelion | 1.7842 AU |
| 1.9263 AU | |
| Eccentricity | 0.0737 |
| 2.67 yr (977 days) | |
| 236.36° | |
| 0° 22m 7.32s / day | |
| Inclination | 22.671° |
| 101.43° | |
| 152.56° | |
| Physical characteristics | |
| Dimensions | 5.62±0.53 km 6.248±0.011 km 6.286±0.055 km 7.51 km (calculated) |
| 5.186±0.004 h 5.193±0.002 h 5.199±0.002 h 5.203±0.002 h | |
| 0.18 (assumed) 0.3468±0.0386 0.381±0.036 0.424±0.082 | |
| SMASS = A · A | |
| 12.8 · 13.1 · 13.18±0.25 | |
4713 Steel, provisional designation 1989 QL, is a rare-type Hungaria asteroid from the inner regions of the asteroid belt, approximately 6 kilometers in diameter. It was discovered on 26 August 1989, by Scottish–Australian astronomer Robert McNaught at the Siding Spring Observatory in New South Wales, Australia. It was named after astronomer Duncan Steel.