1338 Duponta
Duponta seen at approx. 16 apmag in 2009 | |
| Discovery | |
|---|---|
| Discovered by | L. Boyer |
| Discovery site | Algiers Obs. |
| Discovery date | 4 December 1934 |
| Designations | |
| (1338) Duponta | |
| Pronunciation | /djuːˈpɒntə/ |
Named after | Marc Dupont (discoverer's nephew) |
| 1934 XA | |
| main-belt · (inner) Flora | |
| Orbital characteristics | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 82.42 yr (30,104 days) |
| Aphelion | 2.5179 AU |
| Perihelion | 2.0108 AU |
| 2.2644 AU | |
| Eccentricity | 0.1120 |
| 3.41 yr (1,245 days) | |
| 102.88° | |
| 0° 17m 21.48s / day | |
| Inclination | 4.8170° |
| 325.63° | |
| 110.63° | |
| Known satellites | 1 (P: 17.57; D: 1.77 km) |
| Physical characteristics | |
| Dimensions | 7.470±0.114 km 7.68±0.06 (derived) 7.875±0.062 km 7.88 km (taken) 7.885 km |
| 3.85449±0.0003 h 3.85453±0.00009 h 3.85453±0.0003 h | |
| 0.2159 0.2286±0.0274 0.251±0.040 | |
| S (assumed) | |
| 12.30±0.03 (R) · 12.39±0.2 (R) · 12.6 · 12.7 · 12.75 · 12.798±0.064 | |
1338 Duponta, provisional designation 1934 XA, is a stony Florian asteroid and synchronous binary system from the inner regions of the asteroid belt, approximately 7.8 kilometers in diameter.
It was discovered on 4 December 1934, by French astronomer Louis Boyer at the Algiers Observatory in Algeria, North Africa. It was named after the discoverer's nephew, Marc Dupont. The asteroid's unnamed minor-planet moon was discovered in March 2007. It measures approximately 1.77 kilometers in diameter and has an orbital period of 17.57 hours.