1339 Désagneauxa
Modelled shape of Désagneauxa | |
| Discovery | |
|---|---|
| Discovered by | L. Boyer |
| Discovery site | Algiers Obs. |
| Discovery date | 4 December 1934 |
| Designations | |
| (1339) Désagneauxa | |
Named after | discoverer's brother-in-law |
| 1934 XB · 1951 AF | |
| main-belt · Eos | |
| Orbital characteristics | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 82.57 yr (30,160 days) |
| Aphelion | 3.1936 AU |
| Perihelion | 2.8467 AU |
| 3.0202 AU | |
| Eccentricity | 0.0574 |
| 5.25 yr (1,917 days) | |
| 260.48° | |
| 0° 11m 16.08s / day | |
| Inclination | 8.6903° |
| 291.00° | |
| 162.21° | |
| Physical characteristics | |
| Dimensions | 22.96±1.7 km 23.04 km (derived) 24.20±0.65 km 24.450±0.209 km 25.733±0.200 km |
| 9.3209±0.0006 h 9.37510±0.00005 h 9.37514±0.00001 h 9.380±0.003 h | |
| 0.1274±0.0165 0.144±0.024 0.151±0.009 0.1589±0.026 0.1747 (derived) | |
| Tholen = S · S B–V = 0.790 U–B = 0.425 | |
| 10.30±0.23 · 10.7 · 10.81 | |
1339 Désagneauxa, provisional designation 1934 XB, is a stony Eoan asteroid from the outer region of the asteroid belt, approximately 24 kilometers in diameter. It was discovered on 4 December 1934, by French astronomer Louis Boyer at the North African Algiers Observatory in Algeria. A few nights later, the asteroid was independently discovered by astronomers Grigory Neujmin and Eugène Delporte, at the Crimean Simeiz and Belgian Uccle Observatory, respectively. It was later named after discoverer's brother-in-law.